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Ships within 48 hours · Estimated delivery Oct 2 - Oct 7
60% free area * Soft White Options * Countersunk screwholes with matching Phillips #8 x 1-1/2" oval Screws * 10 or 12 gauge steel * Tamper proof screws
Delivers supply air in a 360° air pattern
Please contact us for a quote on options
Front blades are parallel to the shortest dimension
available with one
Pressure Relief Horizontal Air Up 3520-12X24 Accessories 60% free area * Softh3. 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
