Pay in 4 interest-free payments of $33.63 Learn more
Ships within 48 hours · Estimated delivery Aug 10 - Aug 15
Designer Color or Satin Anodized Finish available on this product
Minimum size is 4"x4"
450 Series Submittal
Available in even sizes 6" to 20" and 24"
Pressure Relief Horizontal Air Up 3520-20X14 Commercial Designer Color or Satin Anodizedh3. 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
