Photo 1 of 20" x 20" Steel Return Air Grille | HVAC Vent Cover Grill for Wall, Sidewall and Ceiling | Air Return Vent Covers, White (Screws Included) | Outside Dimensions: 21.75"W x 21.75"H

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Photo 1 of 20" x 20" Steel Return Air Grille | HVAC Vent Cover Grill for Wall, Sidewall and Ceiling | Air Return Vent Covers, White (Screws Included) | Outside Dimensions: 21.75"W x 21.75"HPhoto 2 of 20" x 20" Steel Return Air Grille | HVAC Vent Cover Grill for Wall, Sidewall and Ceiling | Air Return Vent Covers, White (Screws Included) | Outside Dimensions: 21.75"W x 21.75"HPhoto 3 of 20" x 20" Steel Return Air Grille | HVAC Vent Cover Grill for Wall, Sidewall and Ceiling | Air Return Vent Covers, White (Screws Included) | Outside Dimensions: 21.75"W x 21.75"H