Parallel Volume Damper Low Leak 3000PLL-46X28 Step Down Ceiling Diffuser 1/4" cross bars

1/4" cross bars

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

Note: Listed Size Is Nominal Duct Opening / Nominal Filter Size

Adjustable blades oriented for 3 or 4-way air flow pattern

Install with louvers in up or down position for best duct concealment

Parallel Volume Damper Low Leak 3000PLL-46X28 Step Down Ceiling Diffuser 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