Pay in 4 interest-free payments of $414.01 Learn more
Ships within 48 hours · Estimated delivery Aug 26 - Aug 31
450 Series Engineering/Performance Data
Square collar designed for 20” × 20” duct
listed Fire-Resistance Diffuser * TVB - Thermal Vapor Blanket * Square collar
14" and 16" Options * Field installable Bowtie Damper (BD) * HL OR - factory installed opposed radial damper (sizes 6"-14") * HL FR - U
For damper free area chart B click here * 2565 - Round fire door for vertical mount only
Opposed Blade Volume Damper 3000-0BD-54X42 Step Down Ceiling Diffuser 450 Series Engineering/Performance Datah3. Standard Features * Opposed blade operation for precise volume control * 16 gauge galvanized channel frame * Blades are vee stiffened 16 gauge galvanized for strength and stability * Blades pivot on non metallic celcon bushings * 1 2" square zinc plated steel pivot pins * 1 2" square zinc plated steel adjustable operating shaft extending up to 4" beyond the air control frame * Single blades on dampers with a height of 12" or less * Mill finish h3.
US$ 392.70
US$ 457.30
