Photo 1 of Handua 20"W x 14"H [Duct Opening Size] Steel Return Air Grille | Vent Cover Grill for Sidewall and Ceiling, White | Outer Dimensions: 21.75"W X 15.75"H for 20x14 Duct Opening 20"W x 14"H [Duct Opening]

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Photo 1 of Handua 20"W x 14"H [Duct Opening Size] Steel Return Air Grille | Vent Cover Grill for Sidewall and Ceiling, White | Outer Dimensions: 21.75"W X 15.75"H for 20x14 Duct Opening 20"W x 14"H [Duct Opening]Photo 2 of Handua 20"W x 14"H [Duct Opening Size] Steel Return Air Grille | Vent Cover Grill for Sidewall and Ceiling, White | Outer Dimensions: 21.75"W X 15.75"H for 20x14 Duct Opening 20"W x 14"H [Duct Opening]