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![Photo 1 of 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](https://firebasestorage.googleapis.com/v0/b/nellishr-cbba0.appspot.com/o/processing-photos%2F1009468501%2F6J4HK54WXGfy8KPVl66jw.jpg?alt=media&token=b48fd518-263c-4c2d-bd7f-ce506b9493f7)
![Photo 1 of 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](https://firebasestorage.googleapis.com/v0/b/nellishr-cbba0.appspot.com/o/processing-photos%2F1009468501%2FvpQen5I1-9d3KbrcuCYgL.jpg?alt=media&token=e72b9efd-bf13-4f44-b25d-28fdc7b2574e)