Photo 1 of Therwen 2 Pcs 12 Inch Round Vent Cover, Ceiling Diffuser HVAC Vent Duct Cover Replacement with Screws to Install, Fitting in 12 Inch Duct, Outer Dimensions 15-15/16" 12 Inch White

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Photo 1 of Therwen 2 Pcs 12 Inch Round Vent Cover, Ceiling Diffuser HVAC Vent Duct Cover Replacement with Screws to Install, Fitting in 12 Inch Duct, Outer Dimensions 15-15/16" 12 Inch WhitePhoto 2 of Therwen 2 Pcs 12 Inch Round Vent Cover, Ceiling Diffuser HVAC Vent Duct Cover Replacement with Screws to Install, Fitting in 12 Inch Duct, Outer Dimensions 15-15/16" 12 Inch WhitePhoto 3 of Therwen 2 Pcs 12 Inch Round Vent Cover, Ceiling Diffuser HVAC Vent Duct Cover Replacement with Screws to Install, Fitting in 12 Inch Duct, Outer Dimensions 15-15/16" 12 Inch White