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- Sheet Metal Duct Reducer Product #: 66-63Model 66, 6" x 3", 28 Gauge, Hot Dip Galvanized Steel, Tapered, Round, Sheet Metal Duct Reducer Learn More
- Sheet Metal Duct Reducer Product #: 66-65Model 66, 6" x 5", 28 Gauge, Hot Dip Galvanized Steel, Tapered, Round, Sheet Metal Duct Reducer Learn More
- Sheet Metal Duct Reducer Product #: 66-64Model 66, 6" x 4", 28 Gauge, Hot Dip Galvanized Steel, Tapered, Round, Sheet Metal Duct Reducer Learn More
- Sheet Metal Duct Increaser/Reducer Product #: 902065Model 9020, 6" x 5", Mill Finish Black Scratch Resistant Steel, No Crimp, Sheet Metal Duct Increaser/Reducer Learn More