Photo 1 of DECOAIRCON Return Air Grille Fits 12'' x 12'' Duct Opening, Aluminum Eggcrate Return Grille Cover Rust Proof Vent Duct Cover Grille for Wall &Ceiling |Outer Dimensions: 13.78'' X 13.78'' |

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Photo 1 of DECOAIRCON Return Air Grille Fits 12'' x 12'' Duct Opening, Aluminum Eggcrate Return Grille Cover Rust Proof Vent Duct Cover Grille for Wall &Ceiling |Outer Dimensions: 13.78'' X 13.78'' |Photo 2 of DECOAIRCON Return Air Grille Fits 12'' x 12'' Duct Opening, Aluminum Eggcrate Return Grille Cover Rust Proof Vent Duct Cover Grille for Wall &Ceiling |Outer Dimensions: 13.78'' X 13.78'' |