Pressure Relief Vertical Mount 3510-24X14 Commercial Rust-resistant pre-coat with durable powder

Rust-resistant pre-coat with durable powder finish

Holds up to 1" filter

904 - Double Deflection Adjustable Aluminum Blade Grille For a 18" x 14" Duct Opening (front blades parallel to shortest dimension)

Accessory to the 90 Series

3/4" round collar

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