Pay in 4 interest-free payments of $49.76 Learn more
Ships within 48 hours · Estimated delivery Aug 21 - Aug 26
Ceiling opening must be 4” larger in length and width than the nominal duct size
Standard Features * Universal Collars for T-bar supply and returns * Soft White Finish * Available for 6" to 14" round duct in 1" increments
Designed for use in walls
* 2634 - Square or rectangular Spring actuated (6) out-of-airstream fire damper for horizontal or vertical mount
Pressure Relief HD 3530-12X12 Smoke-Fire Damper Ceiling opening must be 4”h3. Standard Features * 3510 Vertical mount * 3520 Horizontal mount air up * 3530 Horizontal mount air down * Designed to open with negative or positive pressures for intake or exhaust air * Felt edge blades to hold noise to a minimum * Aluminum construction * Blade to blade linkage * 1 4" pivot pins in nylon busings * Maximum size 24 x 24 * Mill finish h3. Options * Sleeve variations * Mounting flange * Adjustable counter balance to adjust various
US$ 193.38
US$ 43.95
US$ 11.95
US$ 25.95
US$ 29.95
US$ 13.95
US$ 13.95
US$ 37.95
