Opposed Blade Volume Damper 3000-0BD-70X70 Commercial Heavy Duty Construction (1 1/2"

Heavy Duty Construction (1 1/2" frame depth utilized)

Available in 6”–12” collar sizes

Standard Features *Surface mount return air grille * 0 fixed blades parallel to shortest dimension * Countersunk mounting holes for flush appearance with color matching Phillips posi-drive screws * Soft White Options * 938 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 * Tamper proof screws

080") Aluminum Construction 1/8" GA (

One-piece removable slide damper for off-season closure

Opposed Blade Volume Damper 3000-0BD-70X70 Commercial Heavy Duty Construction (1 1/2"h3. 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.