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Ships within 48 hours · Estimated delivery Oct 14 - Oct 19
Available 4" thru 52" round
Available in 4" through 24" round
available 4" through 40" round (2549)
1 for each end)
Single deflection radius mount spiral pipe grille with adjustable blades
Pressure Relief Horizontal Air Up 3520-6X6 Specialty Products Available 4" thru 52" roundh3. 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
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