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![Photo 1 of 20"W x 20"H [Duct Opening Size] 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](https://firebasestorage.googleapis.com/v0/b/nellishr-cbba0.appspot.com/o/processing-photos%2F1020733166%2Fmqqhv4SiWfcrRmrKWIOUU.jpg?alt=media&token=cd672c39-08fc-4f3f-8422-e411bbbc2fee)
![Photo 1 of 20"W x 20"H [Duct Opening Size] 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](https://firebasestorage.googleapis.com/v0/b/nellishr-cbba0.appspot.com/o/processing-photos%2F1020733166%2FxI9-tMjKbBwWnSMwjJKLk.jpg?alt=media&token=ce0f7314-7a49-43c0-9284-7e689abfb8d4)
![Photo 3 of 20"W x 20"H [Duct Opening Size] 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](https://firebasestorage.googleapis.com/v0/b/nellishr-cbba0.appspot.com/o/processing-photos%2F1020733166%2FEFNBnIpauQuSS4f7me14l.jpg?alt=media&token=a178cb26-114a-43f3-8cf4-4b45c9e516b4)
![Photo 4 of 20"W x 20"H [Duct Opening Size] 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](https://firebasestorage.googleapis.com/v0/b/nellishr-cbba0.appspot.com/o/processing-photos%2F1020733166%2FghMbAWzMMut0bglBSZVvQ.jpg?alt=media&token=8add5641-69d0-40fd-97e5-e310de79bb82)
![Photo 5 of 20"W x 20"H [Duct Opening Size] 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](https://firebasestorage.googleapis.com/v0/b/nellishr-cbba0.appspot.com/o/processing-photos%2F1020733166%2FkGsSrTlEsJe1AP3zV-V_O.jpg?alt=media&token=b71c76b9-2f24-4de1-b925-2a58743582a3)