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![Photo 1 of 16"W x 10"H [Duct Opening Measurements] Steel Return Air Grille (AGC Series) Vent Cover Grill for Sidewall and Ceiling, White | Outer Dimensions: 17.75"W X 11.75"H for 16x10 Duct Opening](https://firebasestorage.googleapis.com/v0/b/nellishr-cbba0.appspot.com/o/processing-photos%2F1010146006%2FaiUw5dZpysMPmqMhmnrI1.jpg?alt=media&token=2014e571-17f8-4eac-9d69-74281facc9d2)
![Photo 2 of 16"W x 10"H [Duct Opening Measurements] Steel Return Air Grille (AGC Series) Vent Cover Grill for Sidewall and Ceiling, White | Outer Dimensions: 17.75"W X 11.75"H for 16x10 Duct Opening](https://firebasestorage.googleapis.com/v0/b/nellishr-cbba0.appspot.com/o/processing-photos%2F1010146006%2FiFBIr30X41BjjXvnnEbiu.jpg?alt=media&token=5a0d508c-a89b-4ef1-9dde-67906aa35ae9)
![Photo 3 of 16"W x 10"H [Duct Opening Measurements] Steel Return Air Grille (AGC Series) Vent Cover Grill for Sidewall and Ceiling, White | Outer Dimensions: 17.75"W X 11.75"H for 16x10 Duct Opening](https://firebasestorage.googleapis.com/v0/b/nellishr-cbba0.appspot.com/o/processing-photos%2F1010146006%2FfbwD_m1pwyT0fEIxcHyK-.jpg?alt=media&token=ca7383ad-c14f-48c9-ae8f-290fd4ea04ff)