Parallel Blade Volume Damper 3000P-60X56 Residential Registers & Grilles RD Series Engineering/Performance Data

RD Series Engineering/Performance Data

1/2" spacing dual angular louvers

904 - Double Deflection Adjustable Aluminum Blade Grille For a 30" x 16" Duct Opening (front blades parallel to shortest dimension)

Standard Features * 1/2" x 1/2" x 1/2" aluminum lattice face *

½ × ½ × ½ Aluminum lattice

Parallel Blade Volume Damper 3000P-60X56 Residential Registers & Grilles RD Series Engineering/Performance Datah3. 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