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Ships within 48 hours · Estimated delivery Aug 31 - Sep 5
with 75% free area
built-in vanities
Lever operated Multi-Shutter Damper
Retainer cables are provided on sizes 12" and larger to allow the inner cones to hang securely while adjusting the diffuser
3/16” crossbars
Pressure Relief Vertical Mount 3510-16X10 past 12 months with 75% free areah3. 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
