Parallel Blade Volume Damper 3000P-46X18 Step Down Ceiling Diffuser 3/16” holes on 1/4” staggered

3/16” holes on 1/4” staggered centers Extruded aluminum frame with signature line marks Perforated material 58% free area Countersunk mounting holes for flush appearance with color matching Phillips posi- drive screws Rust resistant pre-coat with durable powder finish Soft White

* Countersunk mounting holes for flush appearance with color matching Phillips posi-drive screws * Driftwood Tan Options * TD Series - with damper

904 - Double Deflection Adjustable Aluminum Blade Grille For a 36" x 24" Duct Opening (front blades parallel to shortest dimension)

Adjustable baffle controllers to direct airflow horizontally or vertically

PERFORMANCE DATA 915 Series Engineering/Performance Data

Parallel Blade Volume Damper 3000P-46X18 Step Down Ceiling Diffuser 3/16” holes on 1/4” staggeredh3. Standard Features * 16 gauge galvanized channel frame * Parallel blades are cee 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. Options * 3000 PLL Low Leak Air Control