20x40 Return Air Vent Grille - 474 items
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20" X 40 Steel Return Air Filter Grille for 1" Filter - Fixed Hinged - Ceiling Recommended - HVAC DUCT COVER - Flat Stamped Face - White [Outer Dimensions: 22.5 X 41.75]
20"W x 20"H [Duct Opening Measurements] Steel Return Air Filter Grille [Removable Door] for 1-inch Filters | Vent Cover Grill, White | Outer Dimensions: 22 5/8"W X 22 5/8"H for 20x20 Duct Opening
30"W x 20"H [Duct Opening Measurements] Steel Return Air Grille | Vent Cover Grill for Sidewall and Ceiling, White | Outer Dimensions: 31.75"W X 21.75"H for 30x20 Duct Opening
20"W x 20"H [Duct Opening Measurements] Steel Return Air Filter Grille (HD Series) Removable Door | for 1-inch Filters, Vent Cover Grill, White, Outer Dimensions: 22 5/8"W X 22 5/8"H for 20x20 Opening
20"W x 20"H [Duct Opening Measurements] Steel Return Air Filter Grille (AGC Series) Removable Door, for 1-inch Filters, Vent Cover Grill, White, Outer Dimensions: 22 5/8"W X 22 5/8"H for 20x20 Opening
20"w X 20"h Steel Return Air Grilles - Sidewall and Ceiling - HVAC Duct Cover - White [Outer Dimensions: 21.75"w X 21.75"h]
20"W x 20"H [Duct Opening Measurements] [Fixed Hinged] Steel Return Air Filter Grille for 1-inch Filters, Vent Cover Grill for Sidewall and Ceiling, White, Outer Dimensions: 22 5/8"W X 22 5/8"H
20"W x 20"H [Duct Opening Measurements] Steel Return Air Grille (AGC Series) Vent Cover Grill for Sidewall and Ceiling, White | Outer Dimensions: 21.75"W X 21.75"H for 20x20 Duct Opening
Rocky Mountain Goods Air Return Grille - Heavy Duty Steel with Premium Finish - Includes Full Installation kit - Louvered Design - Paintable Vent Cover - Matte White - Consistent air Flow (10" x 6")
