Volume Damper Low-Leak OBD 3000-0BDLL-50X28 Accessories Standard Features * Double deflection

Standard Features * Double deflection aluminum wall or ceiling register * Heavy gauge aluminum frame * Individually adjustable extruded aluminum airfoil blades * Allows for spot or normal air diffusion * Hidden mounting mechanism * White Options: * Standard Color or Designer Color Finish available on this product

Standard Features *Surface mount diffuser * Nylon bushings for easy adjustment and quiet setting of steel blades * Countersunk mounting holes for flush appearance with color matching Phillips posi-drive screws * Double deflection diffuser * Front blades parallel to shortest dimension * Back blades parallel to longest dimension * All blades adjustable allowing 4-way flow adjustment * Soft White Options * 934 O - with recessed screwdriver operated opposed blade damper * 1333 and 1334 Series - stainless steel double deflection * Tamper proof screws * Standard Color or Design Color Finish available on this product

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 version * Fractional

Nylon bushings on adjustable blades to prevent metal on metal rattle

904 - Double Deflection Adjustable Aluminum Blade Grille For a 14" x 10" Duct Opening (front blades parallel to shortest dimension)

Volume Damper Low-Leak OBD 3000-0BDLL-50X28 Accessories Standard Features * Double deflectionh3. Standard Features * Opposed blade operation for precise volume control * 16 gauge galvanized channel frame * Blades are vee stiffened 16 gauge galvanized for strength and stability * Blades pivot on non metallic celcon bushings * 1 2" square zinc plated steel pivot pins * 1 2" square zinc plated steel adjustable operating shaft extending up to 4" beyond the air control frame * Single blades on dampers with a height of 12" or less * Mill finish h3.