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![Photo 1 of **factory sealed** 18"W x 12"H [Duct Opening Size] Steel Return Air Grille (AGC Series) Vent Cover Grill for Sidewall and Ceiling, White | Outer Dimensions: 19.75"W X 13.75"H for 18x12 Duct Opening](https://firebasestorage.googleapis.com/v0/b/nellishr-cbba0.appspot.com/o/processing-photos%2F1012492223%2FH0tU2gPqkWXEDjRT2Gh7k.jpg?alt=media&token=9bc2a1de-0206-48fd-b76c-cf786cd08867)
![Photo 1 of **factory sealed** 18"W x 12"H [Duct Opening Size] Steel Return Air Grille (AGC Series) Vent Cover Grill for Sidewall and Ceiling, White | Outer Dimensions: 19.75"W X 13.75"H for 18x12 Duct Opening](https://firebasestorage.googleapis.com/v0/b/nellishr-cbba0.appspot.com/o/processing-photos%2F1012492223%2FSZCgvV_elTU_7i_hZ53Vf.jpg?alt=media&token=75a48929-a32b-4754-ade8-0e242a69009d)
![Photo 3 of **factory sealed** 18"W x 12"H [Duct Opening Size] Steel Return Air Grille (AGC Series) Vent Cover Grill for Sidewall and Ceiling, White | Outer Dimensions: 19.75"W X 13.75"H for 18x12 Duct Opening](https://firebasestorage.googleapis.com/v0/b/nellishr-cbba0.appspot.com/o/processing-photos%2F1012492223%2FOVVPU2Pn8SDIWo8WhKxqN.jpg?alt=media&token=8814c085-8ad2-4260-8633-39bec333e120)