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Ships within 48 hours · Estimated delivery Aug 11 - Aug 16
52h * Interlocking steel roll-formed blade (3) with roll-formed frames (1) * Blade lock (5) * Damper manufactured from corrosion tested galvanized mild steel (G-90) * Self locking corner (4) * 165° replaceable fusible link (2) h3
Diffuser available in sizes 6×6 through 20×20
Steel construction
see 1560 Series * Tamper proof screws * Standard Color
Pressure Relief Horizontal Air Up 3520-20X18 Residential Registers & Grilles 52h * Interlocking steel roll-formedh3. 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
US$ 49999.50
US$ 49999.50
US$ 200.00
US$ 12.30
US$ 65.25
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