Photo 1 of 5" to 4" Inch Duct Reducer Round Fitting Pipe Increaser Made from Galvanized Steel (Drain, Waste and Vent) Reducing Coupling (Metal)

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Photo 1 of 5" to 4" Inch Duct Reducer Round Fitting Pipe Increaser Made from Galvanized Steel (Drain, Waste and Vent) Reducing Coupling (Metal)Photo 2 of 5" to 4" Inch Duct Reducer Round Fitting Pipe Increaser Made from Galvanized Steel (Drain, Waste and Vent) Reducing Coupling (Metal)