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![Photo 1 of 14"W x 20"H [Duct Opening Measurements] Steel Return Air Grille (HD Series) Vent Cover Grill for Sidewall and Ceiling, White | Outer Dimensions: 15.75"W X 21.75"H for 14x20 Duct Opening](https://firebasestorage.googleapis.com/v0/b/nellishr-cbba0.appspot.com/o/processing-photos%2F1012199680%2Fzohz8t3htiZUwSwlw567y.jpg?alt=media&token=cf5c6658-1836-4128-af30-9d2fe4a4708b)
![Photo 2 of 14"W x 20"H [Duct Opening Measurements] Steel Return Air Grille (HD Series) Vent Cover Grill for Sidewall and Ceiling, White | Outer Dimensions: 15.75"W X 21.75"H for 14x20 Duct Opening](https://firebasestorage.googleapis.com/v0/b/nellishr-cbba0.appspot.com/o/processing-photos%2F1012199680%2FwCFLlDykNHbRu40qwkmm2.jpg?alt=media&token=67cc4b1a-684f-4b18-9e37-f41b358043ca)