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Ships within 48 hours · Estimated delivery Aug 10 - Aug 15
Standard Features * Steel construction * Generous free area for quiet operation * Lever operated single-blade damper * Removable face and damper * Tension wings to stabilize damper * Available in 15"
see 1560 Series * Tamper proof screws * Standard Color
Steel construction
904 - Double Deflection Adjustable Aluminum Blade Grille For a 36" x 4" Duct Opening (front blades parallel to shortest dimension)
NGD - Narrow ceiling grid dimples for 9/16" T-Rails
Pressure Relief Horizontal Air Up 3520-20X18 Residential Registers & Grilles Standard Features * Steel constructionh3. 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
