Jan 4, 2017 · The return air grill elbow is typically fabricated out of rigid fiber board, or in some cases, sheet metal lined with acoustical insulation. The resultant elbow provides some unknown level of acoustical attenuation and eliminates a direct visual path into the ceiling plenum.

Shop Return Air Drops at Ferguson. Find expert-curated Return Air Drops products from the #1 US plumbing supplier and top distributor of HVAC, waterworks, and MRO products.

Feb 15, 2014 · Free Shipping to Continental US | Return air box is a plenum for attaching return duct to return grille in ceiling or floor. Use with start collar and return filter frame to provide return air flow from house to air unit.

Feb 7, 2006 · I recently had a new furnace installed and the installer used 3 extra 90 degree elbows in the return air drop. He did this because the old furnace had a rear return. The new furnace does not allow a rear return and it was easier for him to …

Sound ELL, Short way return/sound boot - Outside dimensions listed. Fits inside ceiling grid. Made from 1" fiberglass duct board. Black Interior for clean view from below. Reduces sound travel from one area to another in drop ceilings. Spec Sheet

The Flexmaster U.S.A. ® Flexible Return Air Kits are manufactured to meet the highest quality standards in strength, permeability and fire resistance required in a flexible air duct.

1620 SLANT COLD AIR DROP WITH 1" FLANGE TURNED OUT 1221 20x10 - 20x16 [706] (810)

HVAC return air elbow at Tradesman MFG in Canada. Our elbows are designed to fit on our Filter Rack and Return Air Duct. Locate a dealer of our Return Air Elbow Supplier products today!

25" x 10" to 25" x 14", Hot Dip Galvanized Steel, Return Air, Sheet Metal Duct Boot

Deflect-o® Return Air Elbow, 8 x 24 - 14 x 23 Inch Vent/Duct, 90 deg, 28 ga Thickness, Sheet Metal, Galvanized