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2" ADC compliant round collar with bead for ease of installation (square sizes only)
Perforated face grille
2" ADC compliant round collar with bead for ease of installation
with 57% free area
Pressure Relief Horizontal Air Up 3520-16X24 Commercial 2" ADC compliant round collarh3. 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$ 700.00
US$ 2537.49
