Photo 1 of 5" to 4" Inch Galvanized Steel Round Duct Reducer - Pipe Fitting Increaser Reducer - Drain, Waste and Vent Conduit Transition Adapter - Metal Tube Reducing Coupling

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Photo 1 of 5" to 4" Inch Galvanized Steel Round Duct Reducer - Pipe Fitting Increaser Reducer - Drain, Waste and Vent Conduit Transition Adapter - Metal Tube Reducing CouplingPhoto 2 of 5" to 4" Inch Galvanized Steel Round Duct Reducer - Pipe Fitting Increaser Reducer - Drain, Waste and Vent Conduit Transition Adapter - Metal Tube Reducing Coupling