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Rust-resistant pre-coat with durable powder finish
104 D FR - U
102 - two way
3/4" round collar
SD52 - Transition Box Spiral Pipe Grille (Single Deflection)
Pressure Relief Vertical Mount 3510-24X14 Commercial Rust-resistant pre-coat with durable powderh3. 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
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