Volume Damper Low-Leak OBD 3000-0BDLL-32X18 Step Down Ceiling Diffuser Perforated face grille

Perforated face grille

Designer Color or Satin Anodized Finish available on this product

w/ Tool Operated Opposed Blade Damper

1 1/2 hour fire resistance rating

2 position adjustment for heating and cooling seasons

Volume Damper Low-Leak OBD 3000-0BDLL-32X18 Step Down Ceiling Diffuser Perforated face grilleh3. 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.