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Ships within 48 hours · Estimated delivery Nov 3 - Nov 8
Free area equals more than 75% of nominal size
904 - Double Deflection Adjustable Aluminum Blade Grille For a 36" x 24" Duct Opening (front blades parallel to shortest dimension)
Opposed Blade Damper
with 60% free area
SUBMITTALS 907 Series Submittal
Pressure Relief Horizontal Air Up 3520-14X14 Smoke-Fire Damper Free area equals more thanh3. 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
US$ 16.00
US$ 18.00
US$ 18.00
US$ 50.00
