Opposed Blade Volume Damper 3000-0BD-50X38 Accessories 055 T6 aluminum surface mount

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

3-way register with stiffened 1/2" fan shaped louvers for silent operation

Standard Features * Individually adjustable curved blade T-Bar diffuser * Core is constructed of

floors and partitions with fire resistance ratings of 2 hours or less (for ceiling application

3/16” crossbars

Opposed Blade Volume Damper 3000-0BD-50X38 Accessories 055 T6 aluminum surface mounth3. 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.