View 2 of 28" x 18" Return Air Grille - Sidewall and Ceiling - HVAC Vent Duct Cover Diffuser - [White] [Outer Dimensions: 29.75w X 19.75" h]

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View 1 of 28" x 18" Return Air Grille - Sidewall and Ceiling - HVAC Vent Duct Cover Diffuser - [White] [Outer Dimensions: 29.75w X 19.75" h]View 2 of 28" x 18" Return Air Grille - Sidewall and Ceiling - HVAC Vent Duct Cover Diffuser - [White] [Outer Dimensions: 29.75w X 19.75" h]