3-Hour Curtain Ceiling Radiation Damper 2720

Standard Features
Square or rectangular ceiling radiation curtain-type damper for horizontal mounting
Designed for protection of ceiling openings in fire rated floor/ceiling assemblies with fire resistance ratings of 3 hours or less
UL listed and tested in accordance with UL Standard 555C
3-hour fire resistance rating
Building materials rated 3 hours or less
CSFM California State Fire Marshal listed
22 gauge steel blades with an insulated blanket
Steel riveted and metal formed assembly
Negator stainless steel closure springs mounted on spring pin brackets
165° replaceable fusible link
Minimum size 4"x4"
Maximum size 14"x14"