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- Sheet Metal Duct Reducer/Increaser Product #: 66-128Model 66, 12" x 8", 26 Gauge, Hot Dip Galvanized Steel, No Crimp, Tapered, Sheet Metal Duct Reducer/Increaser Learn More
- Sheet Metal Duct Reducer/Increaser Product #: 66-129Model 66, 12" x 9", 26 Gauge, Hot Dip Galvanized Steel, No Crimp, Tapered, Sheet Metal Duct Reducer/Increaser Learn More
- Sheet Metal Duct Reducer/Increaser Product #: 66-127Model 66, 12" x 7", 26 Gauge, Hot Dip Galvanized Steel, No Crimp, Tapered, Sheet Metal Duct Reducer/Increaser Learn More
- Sheet Metal Duct Reducer Product #: 66-1210Model 66, 12" x 10", 26 Gauge, Hot Dip Galvanized Steel, Tapered, Round, Sheet Metal Duct Reducer Learn More
- Sheet Metal Duct Reducer/Increaser Product #: 66-126Model 66, 12" x 6", 26 Gauge, Hot Dip Galvanized Steel, No Crimp, Tapered, Sheet Metal Duct Reducer/Increaser Learn More