Pay in 4 interest-free payments of $41.76 Learn more
Ships within 48 hours · Estimated delivery Aug 10 - Aug 15
7/8” Wide x 7/8” High square holes
Designer Color or Satin Anodized Finish available on this product
904 - Double Deflection Adjustable Aluminum Blade Grille For a 20" x 12" Duct Opening (front blades parallel to shortest dimension)
Standard Features * For evaporative cooling or high velocity exhaust applications with divided 2-way multi-louver and combination shut-off * Countersunk mounting holes for flush appearance with color matching Phillips posi-drive screws * Soft White
Pressure Relief Horizontal Air Up 3520-12X24 Accessories 7/8” Wide x 7/8” Highh3. 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
