Parallel Volume Damper Low Leak 3000PLL-58X38 Step Down Ceiling Diffuser 1" and 1 1/2"

1" and 1 1/2"

to 23 29/32"

Standard Features * Extruded aluminum construction * 45 fixed blades parallel to longest dimension * Margin edges are 7/8" projection for baseboard installation * Countersunk mounting holes for flush appearance with color matching Phillips posi-drive screws * Soft White Options * 1100FF - flush frame * Fractional and odd dimension sizes * Standard Color

see 1560 Series * Tamper proof screws * Standard Color

Standard Features * Fixed airfoil blades parallel to 1st dimension given *

Parallel Volume Damper Low Leak 3000PLL-58X38 Step Down Ceiling Diffuser 1" and 1 1/2"h3. 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