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Step down core designed for 4-way uniform air distribution
How To Order Spirals
Divided 2-way multi-louver and combination shut-off
3/16” holes on 1/4” staggered centers Extruded aluminum frame with signature line marks Perforated material 58% free area Countersunk mounting holes for flush appearance with color matching Phillips posi- drive screws Rust resistant pre-coat with durable powder finish Soft White
with color matching Phillips Pozidriv screws
Pressure Relief Vertical Mount 3510-24 Smoke-Fire Damper Step down core designed forh3. Standard Features * 3510 Vertical mount * 3520 Horizontal mount air up * 3530 Horizontal mount air down * Designed to open with negative or positive pressures for intake or exhaust air * Felt edge blades to hold noise to a minimum * Aluminum construction * Blade to blade linkage * 1 4" pivot pins in nylon busings * Maximum size 24 x 24 * Mill finish h3. Options * Sleeve variations * Mounting flange * Adjustable counter balance to adjust various
US$ 154.55
US$ 154.55
US$ 154.55
US$ 137.50
