Volume Damper Low-Leak OBD 3000-0BDLL-68X26 T-Bar * 2550 - Round Spring

* 2550 - Round Spring actuated (6) damper for vertical or horizontal mount

Retainer cables are provided on sizes 12" and larger to allow the inner cones to hang securely while adjusting the diffuser

Access door with 1-3/8" deep steel roll formed frame

Recessed screwdriver operated Opposed Blade Damper

Volume Damper Low-Leak OBD 3000-0BDLL-68X26 T-Bar * 2550 - Round Springh3. 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.