Pressure Relief Vertical Mount 3510-12X16 T-Bar 3/16” crossbars

3/16” crossbars

945 Series Engineering/Performance Data

3 cone steel diffuser with hinged core for easy duct access

SD52 - Transition Box Spiral Pipe Grille (Single Deflection)

Standard Features * 2x2 panel with fixed 22 gauge steel perforated face * 7/8" fiberglass back (R4 value) * Pattern controllers can be adjusted to 1

Pressure Relief Vertical Mount 3510-12X16 T-Bar 3/16” crossbarsh3. 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