Parallel Blade Volume Damper 3000P-42X30 Step Down Ceiling Diffuser Standard Features * 2501 -Square

Standard Features * 2501 -Square or rectangular for vertical mount only

3-way register with stiffened 1/2" fan shaped louvers for silent operation

see 1560 Series * Tamper proof screws * Standard Color

Recessed screwdriver operated Opposed Blade Damper

with 57% free area

Parallel Blade Volume Damper 3000P-42X30 Step Down Ceiling Diffuser Standard Features * 2501 -Squareh3. 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