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Ships within 48 hours · Estimated delivery Oct 7 - Oct 12
accepts 6"-16" collar (collar by others)
Steel construction
Accessory to the 90 Series
Standard Features * Field installable butterfly damper * Available in sizes 6
700 CB20 - two way
Pressure Relief Vertical Mount 3510-24X10 T-Bar accepts 6"-16" collar (collar byh3. 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
