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Dampers above 80 square inches free area will be provided with blade insulation
904 - Double Deflection Adjustable Aluminum Blade Grille For a 20" x 8" Duct Opening (front blades parallel to shortest dimension)
Adjustable directional dampers with shut-off
Type 316 stainless steel
AA-HVL Series Submittal
916 - Fixed 45° Blade Grille-18X24 Finish:Designer Color - Velvet Black Dampers above 80 square inchesStandard Features Extruded aluminum surface mount frame with signature line marks Extruded aluminum fixed bar blades at 45 Blades are parallel to the longest dimension Designed to minimize vision into the air duct Center margins are mounted on the backside of the grille for a streamlined continuous look Countersunk mounting holes with color matching Phillips Pozidriv screws Rust resistant pre coat with durable powder finish Soft White Options Recessed
