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Ships within 48 hours · Estimated delivery Aug 22 - Aug 27
Designer Color or Plated Metal Finish available on this product
Designed to minimize vision into the air duct
Designed for large volume air delivery
UL listed and tested in accordance with UL Standard 555
Pressure Relief HD 3530-18X24 Step Down Ceiling Diffuser Designer Color or Plated Metalh3. 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
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