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![Photo 1 of 18" X 18" Steel Return Air Grilles - Sidewall and Ceiling - HVAC Duct Cover - Black [Outer Dimensions: 19.75" w X 19.75" h]](https://firebasestorage.googleapis.com/v0/b/nellishr-cbba0.appspot.com/o/processing-photos%2F1020409376%2FkRb_wE3wOWUKIeySDqJsc.jpg?alt=media&token=57d8b067-61b6-4270-8ec9-526d49e760b9)
![Photo 2 of 18" X 18" Steel Return Air Grilles - Sidewall and Ceiling - HVAC Duct Cover - Black [Outer Dimensions: 19.75" w X 19.75" h]](https://firebasestorage.googleapis.com/v0/b/nellishr-cbba0.appspot.com/o/processing-photos%2F1020409376%2F_FCPRcO9rBn97kyXvpuFy.jpg?alt=media&token=0105c765-a659-45de-af9d-86ec9a22075b)
![Photo 3 of 18" X 18" Steel Return Air Grilles - Sidewall and Ceiling - HVAC Duct Cover - Black [Outer Dimensions: 19.75" w X 19.75" h]](https://firebasestorage.googleapis.com/v0/b/nellishr-cbba0.appspot.com/o/processing-photos%2F1020409376%2F_wDSMP24iTwlMWCUEsUiN.jpg?alt=media&token=306bbfca-fac9-4b20-9652-488992e90a4d)