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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 36" x 4" Duct Opening (front blades parallel to shortest dimension)
Standard Features
Type 316 stainless steel
Designed for return applications and as a vented access door to equipment
Aluminum Door Grille 4100-22X22 Finish:Designer Color - Aluminum Paint Dampers above 80 square inchesStandard Features * 4000 door core grille with single frame * 4100 door core grille with additional loose frame * . 060 T6 extruded aluminum construction * Completely vision proof * High air capacities * Will accommodate door thickness ranging from 1 1 4" to 2 1 4" * Countersunk mounting holes for flush appearance with color matching Phillips posi drive screws * Driftwood Tan Options * 1310 Series stainless steel door grille * Tamper proof screws *
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