Stainless Steel Fixed 45° Louvered Blade Grille (blades parallel to shortest dimension) Standard FeaturesType 304 stainless steelFixed 45° louvered blades parallel to shortest dimensionApproximately 60% free areaDesigned for limited vision through grilleLouvered blades are reinforced from the rear on approximately 12" centersCountersunk mounting holes for flush appearance with stainless sheet metal screwsMinimum size 4"x4"Maximum size 72"x48"Satin polished finishOptions (must specify when ordering)Type 316 stainless steelOpposed Blade DamperSquare to round transition collarT-Bar applicationTamper Proof Screws - stainless steel Torx Center PinPowder coat finishPlease call or email for pricng:800-495-0125tony@registers-direct.com