Parallel Volume Damper Low Leak 3000PLL-52X30 past 12 months 14" and 16" Options *

14" and 16" Options * Field installable Bowtie Damper (BD) * HL OR - factory installed opposed radial damper (sizes 6"-14") * HL FR - U

SD52 Series Performance Data

055 T6 extruded aluminum surface mount supply diffuser * Four air patterns: CB10 - one way

904 - Double Deflection Adjustable Aluminum Blade Grille For a 30" x 18" Duct Opening (front blades parallel to shortest dimension)

Non-standard size collar (available in 6" through 20")

Parallel Volume Damper Low Leak 3000PLL-52X30 past 12 months 14" and 16" Options *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