Pressure Relief Horizontal Air Up 3520-10X10 Residential Registers & Grilles 3-Way and 4-Way Air Patterns

3-Way and 4-Way Air Patterns

102 P - two way

Available 4" thru 52" round

Spiral Diffuser Radius Flush Mount Diffuser Single Deflec

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Pressure Relief Horizontal Air Up 3520-10X10 Residential Registers & Grilles 3-Way and 4-Way 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