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Ships within 48 hours · Estimated delivery Aug 26 - Aug 31
Available in 6”–12” collar sizes
Options * Sleeve variations * Mounting flange * Adjustable counter balance to adjust various opening pressures
Blade lock to secure blades once the product is activated
Options * 3000 PLL - Low Leak Air Control Damper
blade to blade neoprene seals
Pressure Relief Vertical Mount 3510-18X16 Accessories Available in 6”–12” collar sizesh3. 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
