Volume Damper Low-Leak OBD 3000-0BDLL-60X32 Step Down Ceiling Diffuser Ceramic fiber blade installation with

Ceramic fiber blade installation with fiberglass cover*

T-20 Tamper Proof Screws

CB20 - two way

Hand operated level for easy filter access and cleaning

Volume Damper Low-Leak OBD 3000-0BDLL-60X32 Step Down Ceiling Diffuser Ceramic fiber blade installation withh3. 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.