Parallel Blade Volume Damper 3000P-70X32 past 12 months linkage and handle enclosed in

linkage and handle enclosed in valve to assure trouble-free operation * Countersunk mounting holes for flush appearance with color matching Phillips posi-drive screws * Soft White Options * SCB41 - 4-way air pattern * SCB31 - 3-way air pattern * SCB41 O or SCB31 O - steel lever operated opposed blade damper * SCB42 or SCB32 - no damper * Tamper proof screws * Standard Color

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

2x4 T-Bar (22" x 46" duct)

Heavy Duty Construction

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

Parallel Blade Volume Damper 3000P-70X32 past 12 months linkage and handle enclosed inh3. 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