Double tap image to zoom
![Photo 1 of 18"W x 18"H [Duct Opening Measurements] Steel Return Air Grille (HD Series) Vent Cover Grill for Sidewall and Ceiling, White | Outer Dimensions: 19.75"W X 19.75"H for 18x18 Duct Opening](https://firebasestorage.googleapis.com/v0/b/nellishr-cbba0.appspot.com/o/processing-photos%2F1011913925%2F0Eg9xzSFpGQuR284g7tdB.jpg?alt=media&token=9f7562fa-8f36-4b28-9eb6-affc67dce7e5)
![Photo 1 of 18"W x 18"H [Duct Opening Measurements] Steel Return Air Grille (HD Series) Vent Cover Grill for Sidewall and Ceiling, White | Outer Dimensions: 19.75"W X 19.75"H for 18x18 Duct Opening](https://firebasestorage.googleapis.com/v0/b/nellishr-cbba0.appspot.com/o/processing-photos%2F1011913925%2Fi-2iLdEmlTCB_oz5kmRF3.jpg?alt=media&token=d16f8e75-cc6c-4262-b734-f4b041561d82)