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![Photo 1 of [2 Pack] Fits 16x12 Duct Opening | Steel Return Air Grille by Handua | Vent Cover Grill for Sidewall and Ceiling | White | HVAC Cold Air Intake Grille | Outer Dimensions: 17.75"W X 13.75"H](https://images-na.ssl-images-amazon.com/images/I/610xetBJxpL.jpg)