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HVL Series Engineering/Performance Data
Adjustable directional dampers with shut-off
Designed for large volume air delivery
Long throw individually adjustable blades with 1 1/2" blades on 1 1/2" centers or 3" blades on 3" centers
Aluminum Airfoil Blade Grille - Horizontal Fixed Blade 907-5X34 Damper:Opposed Damper HVL Series Engineering/Performance DataStandard Features * Extruded . 055 T6 aluminum surface mount return air grille * 0 fixed blades parallel to longest dimension * Countersunk mounting holes for flush appearance with color matching Phillips posi drive screws * Soft White Options * 907 O recessed screwdriver operated opposed blade damper * No Labor Collar (square sizes only) * 900 T T Bar mount * 905 HD reinforced construction * 905 IS insect screen * 1335 1338 Series stainless steel
