Pay in 4 interest-free payments of $26.88 Learn more
Ships within 48 hours · Estimated delivery Aug 19 - Aug 24
Standard Features * 1 1/2 hour rated fire damper * 2549 - Round damper for vertical mount only
Extruded aluminum fixed bar blades at 45°
Access door with 1-3/8" deep steel roll formed frame
Standard Features * Extruded aluminum construction with steel multi-shutter damper * Margin edges are 7/8" projection for baseboard installation * Nylon bushings for easy adjustment and quiet setting of airfoil blades running parallel to shortest dimension * Countersunk mounting holes for flush appearance
Pressure Relief Vertical Mount 3510-10 Commercial Standard Features * 1 1/2h3. 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
