Parallel Volume Damper Low Leak 3000PLL-44X10 Step Down Ceiling Diffuser * 2534 - Square or

* 2534 - Square or rectangular spring actuated (6) for horizontal or vertical mount

listed Fire-Resistance Diffusers * TVB - Thermal Vapor Blanket * Square collar

Spiral Diffuser Radius Flush Mount Diffuser Single Deflection with Damper

904 - Double Deflection Adjustable Aluminum Blade Grille For a 24" x 14" Duct Opening (front blades parallel to shortest dimension)

Parallel Volume Damper Low Leak 3000PLL-44X10 Step Down Ceiling Diffuser * 2534 - Square orh3. 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