Photo 1 of 24"W x 8"H [Duct Opening Measurements] Steel Return Air Grille | Vent Cover Grill for Sidewall and Ceiling, White | Outer Dimensions: 25.75"W X 9.75"H for 24x8 Duct Opening 24"W x 8"H [Duct Opening]

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Photo 1 of 24"W x 8"H [Duct Opening Measurements] Steel Return Air Grille | Vent Cover Grill for Sidewall and Ceiling, White | Outer Dimensions: 25.75"W X 9.75"H for 24x8 Duct Opening 24"W x 8"H [Duct Opening]Photo 2 of 24"W x 8"H [Duct Opening Measurements] Steel Return Air Grille | Vent Cover Grill for Sidewall and Ceiling, White | Outer Dimensions: 25.75"W X 9.75"H for 24x8 Duct Opening 24"W x 8"H [Duct Opening]