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Spring actuated curtain-type fire damper with 2 1/4" round connection for horizontal or vertical mount
with 57% free area
2" ADC compliant round collar with bead for ease of installation
2" ADC compliant round collar with bead for ease of installation (square sizes only)
Pressure Relief Horizontal Air Up 3520-16X24 Commercial Spring actuated curtain-type fire damperh3. 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$ 625.00
US$ 14.99
US$ 118.50
