Parallel Blade Volume Damper 3000P-56X14 past 12 months NGD - Narrow ceiling grid

NGD - Narrow ceiling grid dimples for 9/16" T-Rails

built-in vanities

904 - Double Deflection Adjustable Aluminum Blade Grille For a 18" x 14" Duct Opening (front blades parallel to shortest dimension)

Standard Features * Return air T-Bar lay-in filter grille * Removable louvered 20 gauge steel face * 20" x 20"x 1" filter (not included) * 7/8" fiberglass back plenum cut holes 6"-16" (collar by others) * Seismic support holes * Soft White

3-Way and 4-Way Air Patterns

Parallel Blade Volume Damper 3000P-56X14 past 12 months NGD - Narrow ceiling gridh3. 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