Pressure Relief Vertical Mount 3510-14X20 past 12 months Eighteen air patterns

Eighteen air patterns

Individually welded 14 guage diffusion bars

Options 14 GA 304 SS Construction

Uniform 360 degree discharge pattern

Standard Features * 2501 -Square or rectangular for vertical mount only

Pressure Relief Vertical Mount 3510-14X20 past 12 months Eighteen air patternsh3. 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