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Maximum dimension 41w, 36h. * UL and California State Fire Marshall approved * 2\" thinline frame * Interlocking steel roll-formed blade (3) with roll-formed frames (1) * Blade lock (5) * Damper manufactured from corrosion tested galvanized mild steel (G-90) * Self locking corner (4) * 165° replaceable fusible link (2) h3.Options * Sleeve variations * Fractional and odd sizes available h3.Installation Instructions * UL approved installation instructions","brand":"vendor-unknown","offers":[{"title":"Default Title","offer_id":14418507792453,"sku":"208104","price":88.05,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0028\/7509\/7157\/products\/ab9627d73d11383a19719a8eb153f202_3c3de5a1-44b9-4670-b0a8-8149978288eb.jpg?v=1537511451"},{"product_id":"2-vertical-mount-fire-damper-2501-10x8","title":"2\" Vertical Mount Fire Damper 2501-10X8","description":"h3.Standard Features * 2501 -Square or rectangular for vertical mount only. 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Maximum dimension 41w, 36h. * UL and California State Fire Marshall approved * 2\" thinline frame * Interlocking steel roll-formed blade (3) with roll-formed frames (1) * Blade lock (5) * Damper manufactured from corrosion tested galvanized mild steel (G-90) * Self locking corner (4) * 165° replaceable fusible link (2) h3.Options * Sleeve variations * Fractional and odd sizes available h3.Installation Instructions * UL approved installation instructions","brand":"vendor-unknown","offers":[{"title":"Default Title","offer_id":14418527289413,"sku":"208105","price":88.05,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0028\/7509\/7157\/products\/ab9627d73d11383a19719a8eb153f202_786e5ec7-9d47-4c52-8201-1376d304fbfd.jpg?v=1537511464"},{"product_id":"2-vertical-mount-fire-damper-2501-12x10","title":"2\" Vertical Mount Fire Damper 2501-12X10","description":"h3.Standard Features * 2501 -Square or rectangular for vertical mount only. 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Maximum dimension 41w, 36h. * UL and California State Fire Marshall approved * 2\" thinline frame * Interlocking steel roll-formed blade (3) with roll-formed frames (1) * Blade lock (5) * Damper manufactured from corrosion tested galvanized mild steel (G-90) * Self locking corner (4) * 165° replaceable fusible link (2) h3.Options * Sleeve variations * Fractional and odd sizes available h3.Installation Instructions * UL approved installation instructions","brand":"vendor-unknown","offers":[{"title":"Default Title","offer_id":14418541117509,"sku":"208106","price":100.05,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0028\/7509\/7157\/products\/ab9627d73d11383a19719a8eb153f202_8f2eefe6-671b-426f-9b80-3a97cbcaa483.jpg?v=1537511476"},{"product_id":"2-vertical-mount-fire-damper-2501-12x12","title":"2\" Vertical Mount Fire Damper 2501-12X12","description":"h3.Standard Features * 2501 -Square or rectangular for vertical mount only. Maximum dimension 48w, 49h. * 2502 - Square or rectangular spring actuated (6) for horizontal or vertical mount. Maximum dimension 41w, 36h. * UL and California State Fire Marshall approved * 2\" thinline frame * Interlocking steel roll-formed blade (3) with roll-formed frames (1) * Blade lock (5) * Damper manufactured from corrosion tested galvanized mild steel (G-90) * Self locking corner (4) * 165° replaceable fusible link (2) h3.Options * Sleeve variations * Fractional and odd sizes available h3.Installation Instructions * UL approved installation instructions","brand":"vendor-unknown","offers":[{"title":"Default Title","offer_id":14418552881221,"sku":"208107","price":111.05,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0028\/7509\/7157\/products\/ab9627d73d11383a19719a8eb153f202_e3d72122-d0bd-4dbc-ae12-f072149ae9b1.jpg?v=1537511489"},{"product_id":"2-vertical-mount-fire-damper-2501-12x6","title":"2\" Vertical Mount Fire Damper 2501-12X6","description":"h3.Standard Features * 2501 -Square or rectangular for vertical mount only. Maximum dimension 48w, 49h. * 2502 - Square or rectangular spring actuated (6) for horizontal or vertical mount. Maximum dimension 41w, 36h. * UL and California State Fire Marshall approved * 2\" thinline frame * Interlocking steel roll-formed blade (3) with roll-formed frames (1) * Blade lock (5) * Damper manufactured from corrosion tested galvanized mild steel (G-90) * Self locking corner (4) * 165° replaceable fusible link (2) h3.Options * Sleeve variations * Fractional and odd sizes available h3.Installation Instructions * UL approved installation instructions","brand":"vendor-unknown","offers":[{"title":"Default Title","offer_id":14418573525061,"sku":"208108","price":92.05,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0028\/7509\/7157\/products\/ab9627d73d11383a19719a8eb153f202_9d985a2b-4373-4d77-9c70-787fcd039189.jpg?v=1537511501"},{"product_id":"2-vertical-mount-fire-damper-2501-12x8","title":"2\" Vertical Mount Fire Damper 2501-12X8","description":"h3.Standard Features * 2501 -Square or rectangular for vertical mount only. Maximum dimension 48w, 49h. * 2502 - Square or rectangular spring actuated (6) for horizontal or vertical mount. Maximum dimension 41w, 36h. * UL and California State Fire Marshall approved * 2\" thinline frame * Interlocking steel roll-formed blade (3) with roll-formed frames (1) * Blade lock (5) * Damper manufactured from corrosion tested galvanized mild steel (G-90) * Self locking corner (4) * 165° replaceable fusible link (2) h3.Options * Sleeve variations * Fractional and odd sizes available h3.Installation Instructions * UL approved installation instructions","brand":"vendor-unknown","offers":[{"title":"Default Title","offer_id":14418590498885,"sku":"208109","price":100.05,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0028\/7509\/7157\/products\/ab9627d73d11383a19719a8eb153f202_7fe20070-f96e-41ca-a9c3-5fc0b8ec260e.jpg?v=1537511514"},{"product_id":"2-vertical-mount-fire-damper-2501-14x10","title":"2\" Vertical Mount Fire Damper 2501-14X10","description":"h3.Standard Features * 2501 -Square or rectangular for vertical mount only. Maximum dimension 48w, 49h. * 2502 - Square or rectangular spring actuated (6) for horizontal or vertical mount. Maximum dimension 41w, 36h. * UL and California State Fire Marshall approved * 2\" thinline frame * Interlocking steel roll-formed blade (3) with roll-formed frames (1) * Blade lock (5) * Damper manufactured from corrosion tested galvanized mild steel (G-90) * Self locking corner (4) * 165° replaceable fusible link (2) h3.Options * Sleeve variations * Fractional and odd sizes available h3.Installation Instructions * UL approved installation instructions","brand":"vendor-unknown","offers":[{"title":"Default Title","offer_id":14418604195909,"sku":"208110","price":115.05,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0028\/7509\/7157\/products\/ab9627d73d11383a19719a8eb153f202_661cd997-3447-4b4b-9b25-082f451a15e5.jpg?v=1537511527"},{"product_id":"2-vertical-mount-fire-damper-2501-14x14","title":"2\" Vertical Mount Fire Damper 2501-14X14","description":"h3.Standard Features * 2501 -Square or rectangular for vertical mount only. Maximum dimension 48w, 49h. * 2502 - Square or rectangular spring actuated (6) for horizontal or vertical mount. Maximum dimension 41w, 36h. * UL and California State Fire Marshall approved * 2\" thinline frame * Interlocking steel roll-formed blade (3) with roll-formed frames (1) * Blade lock (5) * Damper manufactured from corrosion tested galvanized mild steel (G-90) * Self locking corner (4) * 165° replaceable fusible link (2) h3.Options * Sleeve variations * Fractional and odd sizes available h3.Installation Instructions * UL approved installation instructions","brand":"vendor-unknown","offers":[{"title":"Default Title","offer_id":14418620874821,"sku":"208111","price":138.05,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0028\/7509\/7157\/products\/ab9627d73d11383a19719a8eb153f202_701927a8-fbfa-436b-8307-278da8906619.jpg?v=1537511540"},{"product_id":"2-vertical-mount-fire-damper-2501-14x6","title":"2\" Vertical Mount Fire Damper 2501-14X6","description":"h3.Standard Features * 2501 -Square or rectangular for vertical mount only. Maximum dimension 48w, 49h. * 2502 - Square or rectangular spring actuated (6) for horizontal or vertical mount. Maximum dimension 41w, 36h. * UL and California State Fire Marshall approved * 2\" thinline frame * Interlocking steel roll-formed blade (3) with roll-formed frames (1) * Blade lock (5) * Damper manufactured from corrosion tested galvanized mild steel (G-90) * Self locking corner (4) * 165° replaceable fusible link (2) h3.Options * Sleeve variations * Fractional and odd sizes available h3.Installation Instructions * UL approved installation instructions","brand":"vendor-unknown","offers":[{"title":"Default Title","offer_id":14418635751493,"sku":"208112","price":103.05,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0028\/7509\/7157\/products\/ab9627d73d11383a19719a8eb153f202_9a9a88d9-49f1-408e-8219-262cc0ec6fd7.jpg?v=1537511551"},{"product_id":"2-vertical-mount-fire-damper-2501-14x8","title":"2\" Vertical Mount Fire Damper 2501-14X8","description":"h3.Standard Features * 2501 -Square or rectangular for vertical mount only. Maximum dimension 48w, 49h. * 2502 - Square or rectangular spring actuated (6) for horizontal or vertical mount. Maximum dimension 41w, 36h. * UL and California State Fire Marshall approved * 2\" thinline frame * Interlocking steel roll-formed blade (3) with roll-formed frames (1) * Blade lock (5) * Damper manufactured from corrosion tested galvanized mild steel (G-90) * Self locking corner (4) * 165° replaceable fusible link (2) h3.Options * Sleeve variations * Fractional and odd sizes available h3.Installation Instructions * UL approved installation instructions","brand":"vendor-unknown","offers":[{"title":"Default Title","offer_id":14418651807813,"sku":"208113","price":111.05,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0028\/7509\/7157\/products\/ab9627d73d11383a19719a8eb153f202_963ba6f3-aaeb-4e53-a7b7-e5fb11de54dd.jpg?v=1537511561"},{"product_id":"2-vertical-mount-fire-damper-2501-16x10","title":"2\" Vertical Mount Fire Damper 2501-16X10","description":"h3.Standard Features * 2501 -Square or rectangular for vertical mount only. Maximum dimension 48w, 49h. * 2502 - Square or rectangular spring actuated (6) for horizontal or vertical mount. Maximum dimension 41w, 36h. * UL and California State Fire Marshall approved * 2\" thinline frame * Interlocking steel roll-formed blade (3) with roll-formed frames (1) * Blade lock (5) * Damper manufactured from corrosion tested galvanized mild steel (G-90) * Self locking corner (4) * 165° replaceable fusible link (2) h3.Options * Sleeve variations * Fractional and odd sizes available h3.Installation Instructions * UL approved installation instructions","brand":"vendor-unknown","offers":[{"title":"Default Title","offer_id":14418667503685,"sku":"208114","price":126.05,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0028\/7509\/7157\/products\/ab9627d73d11383a19719a8eb153f202_442e6601-1c86-4c99-839d-4288b85ed507.jpg?v=1537511572"},{"product_id":"2-vertical-mount-fire-damper-2501-16x16","title":"2\" Vertical Mount Fire Damper 2501-16X16","description":"h3.Standard Features * 2501 -Square or rectangular for vertical mount only. Maximum dimension 48w, 49h. * 2502 - Square or rectangular spring actuated (6) for horizontal or vertical mount. Maximum dimension 41w, 36h. * UL and California State Fire Marshall approved * 2\" thinline frame * Interlocking steel roll-formed blade (3) with roll-formed frames (1) * Blade lock (5) * Damper manufactured from corrosion tested galvanized mild steel (G-90) * Self locking corner (4) * 165° replaceable fusible link (2) h3.Options * Sleeve variations * Fractional and odd sizes available h3.Installation Instructions * UL approved installation instructions","brand":"vendor-unknown","offers":[{"title":"Default Title","offer_id":14418679595077,"sku":"208115","price":158.05,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0028\/7509\/7157\/products\/ab9627d73d11383a19719a8eb153f202_6a59f54e-528b-4b07-839f-ca7673d6de1b.jpg?v=1537511583"},{"product_id":"2-vertical-mount-fire-damper-2501-16x6","title":"2\" Vertical Mount Fire Damper 2501-16X6","description":"h3.Standard Features * 2501 -Square or rectangular for vertical mount only. Maximum dimension 48w, 49h. * 2502 - Square or rectangular spring actuated (6) for horizontal or vertical mount. Maximum dimension 41w, 36h. * UL and California State Fire Marshall approved * 2\" thinline frame * Interlocking steel roll-formed blade (3) with roll-formed frames (1) * Blade lock (5) * Damper manufactured from corrosion tested galvanized mild steel (G-90) * Self locking corner (4) * 165° replaceable fusible link (2) h3.Options * Sleeve variations * Fractional and odd sizes available h3.Installation Instructions * UL approved installation instructions","brand":"vendor-unknown","offers":[{"title":"Default Title","offer_id":14418684051525,"sku":"208116","price":111.05,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0028\/7509\/7157\/products\/ab9627d73d11383a19719a8eb153f202_ae51fc8d-00ec-4a6e-9803-735d06dfad41.jpg?v=1537511594"},{"product_id":"2-vertical-mount-fire-damper-2501-16x8","title":"2\" Vertical Mount Fire Damper 2501-16X8","description":"h3.Standard Features * 2501 -Square or rectangular for vertical mount only. Maximum dimension 48w, 49h. * 2502 - Square or rectangular spring actuated (6) for horizontal or vertical mount. Maximum dimension 41w, 36h. * UL and California State Fire Marshall approved * 2\" thinline frame * Interlocking steel roll-formed blade (3) with roll-formed frames (1) * Blade lock (5) * Damper manufactured from corrosion tested galvanized mild steel (G-90) * Self locking corner (4) * 165° replaceable fusible link (2) h3.Options * Sleeve variations * Fractional and odd sizes available h3.Installation Instructions * UL approved installation instructions","brand":"vendor-unknown","offers":[{"title":"Default Title","offer_id":14418705481797,"sku":"208117","price":123.05,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0028\/7509\/7157\/products\/ab9627d73d11383a19719a8eb153f202_793b1f38-5aac-4d3b-84c9-3af1da932180.jpg?v=1537511604"},{"product_id":"2-vertical-mount-fire-damper-2501-18x10","title":"2\" Vertical Mount Fire Damper 2501-18X10","description":"h3.Standard Features * 2501 -Square or rectangular for vertical mount only. Maximum dimension 48w, 49h. * 2502 - Square or rectangular spring actuated (6) for horizontal or vertical mount. Maximum dimension 41w, 36h. * UL and California State Fire Marshall approved * 2\" thinline frame * Interlocking steel roll-formed blade (3) with roll-formed frames (1) * Blade lock (5) * Damper manufactured from corrosion tested galvanized mild steel (G-90) * Self locking corner (4) * 165° replaceable fusible link (2) h3.Options * Sleeve variations * Fractional and odd sizes available h3.Installation Instructions * UL approved installation instructions","brand":"vendor-unknown","offers":[{"title":"Default Title","offer_id":14418715148357,"sku":"208118","price":134.05,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0028\/7509\/7157\/products\/ab9627d73d11383a19719a8eb153f202_37e21013-a697-4dbd-8a53-c1be377e7636.jpg?v=1537511615"},{"product_id":"2-vertical-mount-fire-damper-2501-18x18","title":"2\" Vertical Mount Fire Damper 2501-18X18","description":"h3.Standard Features * 2501 -Square or rectangular for vertical mount only. Maximum dimension 48w, 49h. * 2502 - Square or rectangular spring actuated (6) for horizontal or vertical mount. Maximum dimension 41w, 36h. * UL and California State Fire Marshall approved * 2\" thinline frame * Interlocking steel roll-formed blade (3) with roll-formed frames (1) * Blade lock (5) * Damper manufactured from corrosion tested galvanized mild steel (G-90) * Self locking corner (4) * 165° replaceable fusible link (2) h3.Options * Sleeve variations * Fractional and odd sizes available h3.Installation Instructions * UL approved installation instructions","brand":"vendor-unknown","offers":[{"title":"Default Title","offer_id":14418738315333,"sku":"208119","price":176.05,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0028\/7509\/7157\/products\/ab9627d73d11383a19719a8eb153f202_6f1e0295-cb11-47e5-8cfb-ef081b9e60cc.jpg?v=1537511626"},{"product_id":"2-vertical-mount-fire-damper-2501-18x6","title":"2\" Vertical Mount Fire Damper 2501-18X6","description":"h3.Standard Features * 2501 -Square or rectangular for vertical mount only. Maximum dimension 48w, 49h. * 2502 - Square or rectangular spring actuated (6) for horizontal or vertical mount. Maximum dimension 41w, 36h. * UL and California State Fire Marshall approved * 2\" thinline frame * Interlocking steel roll-formed blade (3) with roll-formed frames (1) * Blade lock (5) * Damper manufactured from corrosion tested galvanized mild steel (G-90) * Self locking corner (4) * 165° replaceable fusible link (2) h3.Options * Sleeve variations * Fractional and odd sizes available h3.Installation Instructions * UL approved installation instructions","brand":"vendor-unknown","offers":[{"title":"Default Title","offer_id":14418750636101,"sku":"208120","price":119.05,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0028\/7509\/7157\/products\/ab9627d73d11383a19719a8eb153f202_3ff0fcfd-f462-48bc-aa5e-5481dffd7be9.jpg?v=1537511637"},{"product_id":"2-vertical-mount-fire-damper-2501-18x8","title":"2\" Vertical Mount Fire Damper 2501-18X8","description":"h3.Standard Features * 2501 -Square or rectangular for vertical mount only. Maximum dimension 48w, 49h. * 2502 - Square or rectangular spring actuated (6) for horizontal or vertical mount. Maximum dimension 41w, 36h. * UL and California State Fire Marshall approved * 2\" thinline frame * Interlocking steel roll-formed blade (3) with roll-formed frames (1) * Blade lock (5) * Damper manufactured from corrosion tested galvanized mild steel (G-90) * Self locking corner (4) * 165° replaceable fusible link (2) h3.Options * Sleeve variations * Fractional and odd sizes available h3.Installation Instructions * UL approved installation instructions","brand":"vendor-unknown","offers":[{"title":"Default Title","offer_id":14418761056325,"sku":"208121","price":130.05,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0028\/7509\/7157\/products\/ab9627d73d11383a19719a8eb153f202_2d8d5ae9-2fd0-4c99-b74f-cf5f7f701558.jpg?v=1537511647"},{"product_id":"2-vertical-mount-fire-damper-2501-20x10","title":"2\" Vertical Mount Fire Damper 2501-20X10","description":"h3.Standard Features * 2501 -Square or rectangular for vertical mount only. Maximum dimension 48w, 49h. * 2502 - Square or rectangular spring actuated (6) for horizontal or vertical mount. Maximum dimension 41w, 36h. * UL and California State Fire Marshall approved * 2\" thinline frame * Interlocking steel roll-formed blade (3) with roll-formed frames (1) * Blade lock (5) * Damper manufactured from corrosion tested galvanized mild steel (G-90) * Self locking corner (4) * 165° replaceable fusible link (2) h3.Options * Sleeve variations * Fractional and odd sizes available h3.Installation Instructions * UL approved installation instructions","brand":"vendor-unknown","offers":[{"title":"Default Title","offer_id":14418778947653,"sku":"208122","price":146.05,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0028\/7509\/7157\/products\/ab9627d73d11383a19719a8eb153f202_83275e76-3f2e-471e-9a6a-bb0f45a0f3fb.jpg?v=1537511658"},{"product_id":"2-vertical-mount-fire-damper-2501-20x12","title":"2\" Vertical Mount Fire Damper 2501-20X12","description":"h3.Standard Features * 2501 -Square or rectangular for vertical mount only. Maximum dimension 48w, 49h. * 2502 - Square or rectangular spring actuated (6) for horizontal or vertical mount. Maximum dimension 41w, 36h. * UL and California State Fire Marshall approved * 2\" thinline frame * Interlocking steel roll-formed blade (3) with roll-formed frames (1) * Blade lock (5) * Damper manufactured from corrosion tested galvanized mild steel (G-90) * Self locking corner (4) * 165° replaceable fusible link (2) h3.Options * Sleeve variations * Fractional and odd sizes available h3.Installation Instructions * UL approved installation instructions","brand":"vendor-unknown","offers":[{"title":"Default Title","offer_id":14418795200581,"sku":"208123","price":158.05,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0028\/7509\/7157\/products\/ab9627d73d11383a19719a8eb153f202_157970b1-8c0e-40ac-81bb-90a8cf35fa79.jpg?v=1537511669"},{"product_id":"2-vertical-mount-fire-damper-2501-20x14","title":"2\" Vertical Mount Fire Damper 2501-20X14","description":"h3.Standard Features * 2501 -Square or rectangular for vertical mount only. Maximum dimension 48w, 49h. * 2502 - Square or rectangular spring actuated (6) for horizontal or vertical mount. Maximum dimension 41w, 36h. * UL and California State Fire Marshall approved * 2\" thinline frame * Interlocking steel roll-formed blade (3) with roll-formed frames (1) * Blade lock (5) * Damper manufactured from corrosion tested galvanized mild steel (G-90) * Self locking corner (4) * 165° replaceable fusible link (2) h3.Options * Sleeve variations * Fractional and odd sizes available h3.Installation Instructions * UL approved installation instructions","brand":"vendor-unknown","offers":[{"title":"Default Title","offer_id":14418805751877,"sku":"208124","price":165.05,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0028\/7509\/7157\/products\/ab9627d73d11383a19719a8eb153f202_c6c8a126-c9bf-46b3-b3e8-32d1b3687ae1.jpg?v=1537511679"},{"product_id":"2-vertical-mount-fire-damper-2501-20x16","title":"2\" Vertical Mount Fire Damper 2501-20X16","description":"h3.Standard Features * 2501 -Square or rectangular for vertical mount only. Maximum dimension 48w, 49h. * 2502 - Square or rectangular spring actuated (6) for horizontal or vertical mount. Maximum dimension 41w, 36h. * UL and California State Fire Marshall approved * 2\" thinline frame * Interlocking steel roll-formed blade (3) with roll-formed frames (1) * Blade lock (5) * Damper manufactured from corrosion tested galvanized mild steel (G-90) * Self locking corner (4) * 165° replaceable fusible link (2) h3.Options * Sleeve variations * Fractional and odd sizes available h3.Installation Instructions * UL approved installation instructions","brand":"vendor-unknown","offers":[{"title":"Default Title","offer_id":14418824331333,"sku":"208125","price":172.05,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0028\/7509\/7157\/products\/ab9627d73d11383a19719a8eb153f202_5965c80f-50ab-467c-bae1-f99270474340.jpg?v=1537511690"},{"product_id":"2-vertical-mount-fire-damper-2501-20x18","title":"2\" Vertical Mount Fire Damper 2501-20X18","description":"h3.Standard Features * 2501 -Square or rectangular for vertical mount only. 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Maximum dimension 41w, 36h. * UL and California State Fire Marshall approved * 2\" thinline frame * Interlocking steel roll-formed blade (3) with roll-formed frames (1) * Blade lock (5) * Damper manufactured from corrosion tested galvanized mild steel (G-90) * Self locking corner (4) * 165° replaceable fusible link (2) h3.Options * Sleeve variations * Fractional and odd sizes available h3.Installation Instructions * UL approved installation instructions","brand":"vendor-unknown","offers":[{"title":"Default Title","offer_id":14418840354885,"sku":"208126","price":184.05,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0028\/7509\/7157\/products\/ab9627d73d11383a19719a8eb153f202_e9f783d8-5bf2-4d2b-acc4-88aca34c1649.jpg?v=1537511701"},{"product_id":"2-vertical-mount-fire-damper-2501-20x20","title":"2\" Vertical Mount Fire Damper 2501-20X20","description":"h3.Standard Features * 2501 -Square or rectangular for vertical mount only. 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Maximum dimension 41w, 36h. * UL and California State Fire Marshall approved * 2\" thinline frame * Interlocking steel roll-formed blade (3) with roll-formed frames (1) * Blade lock (5) * Damper manufactured from corrosion tested galvanized mild steel (G-90) * Self locking corner (4) * 165° replaceable fusible link (2) h3.Options * Sleeve variations * Fractional and odd sizes available h3.Installation Instructions * UL approved installation instructions","brand":"vendor-unknown","offers":[{"title":"Default Title","offer_id":14418878595141,"sku":"208129","price":134.05,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0028\/7509\/7157\/products\/ab9627d73d11383a19719a8eb153f202_ee52722b-f4e6-4190-8d9d-153afa85d1ec.jpg?v=1537511733"},{"product_id":"2-vertical-mount-fire-damper-2501-22x10","title":"2\" Vertical Mount Fire Damper 2501-22X10","description":"h3.Standard Features * 2501 -Square or rectangular for vertical mount only. 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Maximum dimension 41w, 36h. * UL and California State Fire Marshall approved * 2\" thinline frame * Interlocking steel roll-formed blade (3) with roll-formed frames (1) * Blade lock (5) * Damper manufactured from corrosion tested galvanized mild steel (G-90) * Self locking corner (4) * 165° replaceable fusible link (2) h3.Options * Sleeve variations * Fractional and odd sizes available h3.Installation Instructions * UL approved installation instructions","brand":"vendor-unknown","offers":[{"title":"Default Title","offer_id":14418927124549,"sku":"208132","price":134.05,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0028\/7509\/7157\/products\/ab9627d73d11383a19719a8eb153f202_6f7802cb-a936-4097-8bdb-8c325cbb440a.jpg?v=1537511764"},{"product_id":"2-vertical-mount-fire-damper-2501-22x8","title":"2\" Vertical Mount Fire Damper 2501-22X8","description":"h3.Standard Features * 2501 -Square or rectangular for vertical mount only. 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Maximum dimension 41w, 36h. * UL and California State Fire Marshall approved * 2\" thinline frame * Interlocking steel roll-formed blade (3) with roll-formed frames (1) * Blade lock (5) * Damper manufactured from corrosion tested galvanized mild steel (G-90) * Self locking corner (4) * 165° replaceable fusible link (2) h3.Options * Sleeve variations * Fractional and odd sizes available h3.Installation Instructions * UL approved installation instructions","brand":"vendor-unknown","offers":[{"title":"Default Title","offer_id":14418970443845,"sku":"208135","price":172.05,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0028\/7509\/7157\/products\/ab9627d73d11383a19719a8eb153f202_23d62907-18b6-4ffc-854e-47ba552c40b6.jpg?v=1537511797"},{"product_id":"2-vertical-mount-fire-damper-2501-24x14","title":"2\" Vertical Mount Fire Damper 2501-24X14","description":"h3.Standard Features * 2501 -Square or rectangular for vertical mount only. 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Maximum dimension 41w, 36h. * UL and California State Fire Marshall approved * 2\" thinline frame * Interlocking steel roll-formed blade (3) with roll-formed frames (1) * Blade lock (5) * Damper manufactured from corrosion tested galvanized mild steel (G-90) * Self locking corner (4) * 165° replaceable fusible link (2) h3.Options * Sleeve variations * Fractional and odd sizes available h3.Installation Instructions * UL approved installation instructions","brand":"vendor-unknown","offers":[{"title":"Default Title","offer_id":14418987188293,"sku":"208136","price":184.05,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0028\/7509\/7157\/products\/ab9627d73d11383a19719a8eb153f202_dbd6d45e-b03f-40fc-a111-fbe6f9447e17.jpg?v=1537511808"},{"product_id":"2-vertical-mount-fire-damper-2501-24x16","title":"2\" Vertical Mount Fire Damper 2501-24X16","description":"h3.Standard Features * 2501 -Square or rectangular for vertical mount only. 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Maximum dimension 41w, 36h. * UL and California State Fire Marshall approved * 2\" thinline frame * Interlocking steel roll-formed blade (3) with roll-formed frames (1) * Blade lock (5) * Damper manufactured from corrosion tested galvanized mild steel (G-90) * Self locking corner (4) * 165° replaceable fusible link (2) h3.Options * Sleeve variations * Fractional and odd sizes available h3.Installation Instructions * UL approved installation instructions","brand":"vendor-unknown","offers":[{"title":"Default Title","offer_id":14418999902277,"sku":"208137","price":191.05,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0028\/7509\/7157\/products\/ab9627d73d11383a19719a8eb153f202_fb3de4e1-8674-4662-af45-10d88d897f80.jpg?v=1537511819"},{"product_id":"2-vertical-mount-fire-damper-2501-24x18","title":"2\" Vertical Mount Fire Damper 2501-24X18","description":"h3.Standard Features * 2501 -Square or rectangular for vertical mount only. 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Maximum dimension 41w, 36h. * UL and California State Fire Marshall approved * 2\" thinline frame * Interlocking steel roll-formed blade (3) with roll-formed frames (1) * Blade lock (5) * Damper manufactured from corrosion tested galvanized mild steel (G-90) * Self locking corner (4) * 165° replaceable fusible link (2) h3.Options * Sleeve variations * Fractional and odd sizes available h3.Installation Instructions * UL approved installation instructions","brand":"vendor-unknown","offers":[{"title":"Default Title","offer_id":14419011305541,"sku":"208138","price":200.05,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0028\/7509\/7157\/products\/ab9627d73d11383a19719a8eb153f202_dad638ad-4184-4f12-ae3b-580186b523ea.jpg?v=1537511829"},{"product_id":"2-vertical-mount-fire-damper-2501-24x20","title":"2\" Vertical Mount Fire Damper 2501-24X20","description":"h3.Standard Features * 2501 -Square or rectangular for vertical mount only. 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Maximum dimension 41w, 36h. * UL and California State Fire Marshall approved * 2\" thinline frame * Interlocking steel roll-formed blade (3) with roll-formed frames (1) * Blade lock (5) * Damper manufactured from corrosion tested galvanized mild steel (G-90) * Self locking corner (4) * 165° replaceable fusible link (2) h3.Options * Sleeve variations * Fractional and odd sizes available h3.Installation Instructions * UL approved installation instructions","brand":"vendor-unknown","offers":[{"title":"Default Title","offer_id":14419023102021,"sku":"208139","price":213.05,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0028\/7509\/7157\/products\/ab9627d73d11383a19719a8eb153f202_b720a755-835f-4d66-a675-6cc24adb5df1.jpg?v=1537511840"},{"product_id":"2-vertical-mount-fire-damper-2501-24x24","title":"2\" Vertical Mount Fire Damper 2501-24X24","description":"h3.Standard Features * 2501 -Square or rectangular for vertical mount only. 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Maximum dimension 41w, 36h. * UL and California State Fire Marshall approved * 2\" thinline frame * Interlocking steel roll-formed blade (3) with roll-formed frames (1) * Blade lock (5) * Damper manufactured from corrosion tested galvanized mild steel (G-90) * Self locking corner (4) * 165° replaceable fusible link (2) h3.Options * Sleeve variations * Fractional and odd sizes available h3.Installation Instructions * UL approved installation instructions","brand":"vendor-unknown","offers":[{"title":"Default Title","offer_id":14419031425093,"sku":"208140","price":224.05,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0028\/7509\/7157\/products\/ab9627d73d11383a19719a8eb153f202_ceb81456-537f-41c8-91ba-4ed7e5814b65.jpg?v=1537511851"},{"product_id":"2-vertical-mount-fire-damper-2501-24x6","title":"2\" Vertical Mount Fire Damper 2501-24X6","description":"h3.Standard Features * 2501 -Square or rectangular for vertical mount only. 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Maximum dimension 41w, 36h. * UL and California State Fire Marshall approved * 2\" thinline frame * Interlocking steel roll-formed blade (3) with roll-formed frames (1) * Blade lock (5) * Damper manufactured from corrosion tested galvanized mild steel (G-90) * Self locking corner (4) * 165° replaceable fusible link (2) h3.Options * Sleeve variations * Fractional and odd sizes available h3.Installation Instructions * UL approved installation instructions","brand":"vendor-unknown","offers":[{"title":"Default Title","offer_id":14419049906245,"sku":"208141","price":134.05,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0028\/7509\/7157\/products\/ab9627d73d11383a19719a8eb153f202_79afe089-b290-4ad3-82a9-3a38d67dd1c6.jpg?v=1537511862"},{"product_id":"2-vertical-mount-fire-damper-2501-24x8","title":"2\" Vertical Mount Fire Damper 2501-24X8","description":"h3.Standard Features * 2501 -Square or rectangular for vertical mount only. 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Maximum dimension 41w, 36h. * UL and California State Fire Marshall approved * 2\" thinline frame * Interlocking steel roll-formed blade (3) with roll-formed frames (1) * Blade lock (5) * Damper manufactured from corrosion tested galvanized mild steel (G-90) * Self locking corner (4) * 165° replaceable fusible link (2) h3.Options * Sleeve variations * Fractional and odd sizes available h3.Installation Instructions * UL approved installation instructions","brand":"vendor-unknown","offers":[{"title":"Default Title","offer_id":14419059376197,"sku":"208142","price":146.05,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0028\/7509\/7157\/products\/ab9627d73d11383a19719a8eb153f202_010e8920-fe80-436f-898b-0154bf90dc1a.jpg?v=1537511873"},{"product_id":"2-vertical-mount-fire-damper-2501-26x10","title":"2\" Vertical Mount Fire Damper 2501-26X10","description":"h3.Standard Features * 2501 -Square or rectangular for vertical mount only. Maximum dimension 48w, 49h. * 2502 - Square or rectangular spring actuated (6) for horizontal or vertical mount. Maximum dimension 41w, 36h. * UL and California State Fire Marshall approved * 2\" thinline frame * Interlocking steel roll-formed blade (3) with roll-formed frames (1) * Blade lock (5) * Damper manufactured from corrosion tested galvanized mild steel (G-90) * Self locking corner (4) * 165° replaceable fusible link (2) h3.Options * Sleeve variations * Fractional and odd sizes available h3.Installation Instructions * UL approved installation instructions","brand":"vendor-unknown","offers":[{"title":"Default Title","offer_id":14419081494597,"sku":"208143","price":165.05,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0028\/7509\/7157\/products\/ab9627d73d11383a19719a8eb153f202_f7edb9b5-0279-4bbb-af63-406382afd733.jpg?v=1537511884"},{"product_id":"2-vertical-mount-fire-damper-2501-26x26","title":"2\" Vertical Mount Fire Damper 2501-26X26","description":"h3.Standard Features * 2501 -Square or rectangular for vertical mount only. Maximum dimension 48w, 49h. * 2502 - Square or rectangular spring actuated (6) for horizontal or vertical mount. Maximum dimension 41w, 36h. * UL and California State Fire Marshall approved * 2\" thinline frame * Interlocking steel roll-formed blade (3) with roll-formed frames (1) * Blade lock (5) * Damper manufactured from corrosion tested galvanized mild steel (G-90) * Self locking corner (4) * 165° replaceable fusible link (2) h3.Options * Sleeve variations * Fractional and odd sizes available h3.Installation Instructions * UL approved installation instructions","brand":"vendor-unknown","offers":[{"title":"Default Title","offer_id":14419094011973,"sku":"208144","price":253.05,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0028\/7509\/7157\/products\/ab9627d73d11383a19719a8eb153f202_94de6d77-e37e-4eef-af29-69caae42a3b1.jpg?v=1537511897"},{"product_id":"2-vertical-mount-fire-damper-2501-26x6","title":"2\" Vertical Mount Fire Damper 2501-26X6","description":"h3.Standard Features * 2501 -Square or rectangular for vertical mount only. Maximum dimension 48w, 49h. * 2502 - Square or rectangular spring actuated (6) for horizontal or vertical mount. Maximum dimension 41w, 36h. * UL and California State Fire Marshall approved * 2\" thinline frame * Interlocking steel roll-formed blade (3) with roll-formed frames (1) * Blade lock (5) * Damper manufactured from corrosion tested galvanized mild steel (G-90) * Self locking corner (4) * 165° replaceable fusible link (2) h3.Options * Sleeve variations * Fractional and odd sizes available h3.Installation Instructions * UL approved installation instructions","brand":"vendor-unknown","offers":[{"title":"Default Title","offer_id":14419110723653,"sku":"208145","price":146.05,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0028\/7509\/7157\/products\/ab9627d73d11383a19719a8eb153f202_0d5c2dd3-1667-4db1-8d4b-d0238cf0318b.jpg?v=1537511908"},{"product_id":"2-vertical-mount-fire-damper-2501-26x8","title":"2\" Vertical Mount Fire Damper 2501-26X8","description":"h3.Standard Features * 2501 -Square or rectangular for vertical mount only. Maximum dimension 48w, 49h. * 2502 - Square or rectangular spring actuated (6) for horizontal or vertical mount. Maximum dimension 41w, 36h. * UL and California State Fire Marshall approved * 2\" thinline frame * Interlocking steel roll-formed blade (3) with roll-formed frames (1) * Blade lock (5) * Damper manufactured from corrosion tested galvanized mild steel (G-90) * Self locking corner (4) * 165° replaceable fusible link (2) h3.Options * Sleeve variations * Fractional and odd sizes available h3.Installation Instructions * UL approved installation instructions","brand":"vendor-unknown","offers":[{"title":"Default Title","offer_id":14419124256837,"sku":"208146","price":158.05,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0028\/7509\/7157\/products\/ab9627d73d11383a19719a8eb153f202_e7475c8d-083f-4419-bcfc-4177cc1c5f2b.jpg?v=1537511918"},{"product_id":"2-vertical-mount-fire-damper-2501-28x10","title":"2\" Vertical Mount Fire Damper 2501-28X10","description":"h3.Standard Features * 2501 -Square or rectangular for vertical mount only. Maximum dimension 48w, 49h. * 2502 - Square or rectangular spring actuated (6) for horizontal or vertical mount. Maximum dimension 41w, 36h. * UL and California State Fire Marshall approved * 2\" thinline frame * Interlocking steel roll-formed blade (3) with roll-formed frames (1) * Blade lock (5) * Damper manufactured from corrosion tested galvanized mild steel (G-90) * Self locking corner (4) * 165° replaceable fusible link (2) h3.Options * Sleeve variations * Fractional and odd sizes available h3.Installation Instructions * UL approved installation instructions","brand":"vendor-unknown","offers":[{"title":"Default Title","offer_id":14419137331269,"sku":"208147","price":172.05,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0028\/7509\/7157\/products\/ab9627d73d11383a19719a8eb153f202_9c8ab77f-eee1-4305-b61b-04a9a7732d1b.jpg?v=1537511929"},{"product_id":"2-vertical-mount-fire-damper-2501-28x28","title":"2\" Vertical Mount Fire Damper 2501-28X28","description":"h3.Standard Features * 2501 -Square or rectangular for vertical mount only. Maximum dimension 48w, 49h. * 2502 - Square or rectangular spring actuated (6) for horizontal or vertical mount. Maximum dimension 41w, 36h. * UL and California State Fire Marshall approved * 2\" thinline frame * Interlocking steel roll-formed blade (3) with roll-formed frames (1) * Blade lock (5) * Damper manufactured from corrosion tested galvanized mild steel (G-90) * Self locking corner (4) * 165° replaceable fusible link (2) h3.Options * Sleeve variations * Fractional and odd sizes available h3.Installation Instructions * UL approved installation instructions","brand":"vendor-unknown","offers":[{"title":"Default Title","offer_id":14419149914181,"sku":"208148","price":278.05,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0028\/7509\/7157\/products\/ab9627d73d11383a19719a8eb153f202_1ac1513f-a007-4113-9202-9d6f5ec4f078.jpg?v=1537511940"},{"product_id":"2-vertical-mount-fire-damper-2501-28x6","title":"2\" Vertical Mount Fire Damper 2501-28X6","description":"h3.Standard Features * 2501 -Square or rectangular for vertical mount only. Maximum dimension 48w, 49h. * 2502 - Square or rectangular spring actuated (6) for horizontal or vertical mount. 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Maximum dimension 48w, 49h. * 2502 - Square or rectangular spring actuated (6) for horizontal or vertical mount. 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