Parallel Blade Volume Damper 3000P-54X40 past 12 months 1/4" cross bars

1/4" cross bars

w/ Screwdriver Operated Opposed Blade Damper

Airfoil blades individually adjustable on 3/4" centers

Step down core designed for 4-way uniform air distribution

T-Bar hinged 2 Cone Step Down Diffuser with Round Collar

Parallel Blade Volume Damper 3000P-54X40 past 12 months 1/4" cross barsh3. 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