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- Sheet Metal Duct Reducer Product #: 66-74Model 66, 7" x 4", 28 Gauge, Hot Dip Galvanized Steel, Tapered, Round, Sheet Metal Duct Reducer Learn More
- Sheet Metal Duct Reducer Product #: 66-84Model 66, 8" x 4", 28 Gauge, Hot Dip Galvanized Steel, Tapered, Round, Sheet Metal Duct Reducer Learn More
- Sheet Metal Duct Reducer Product #: 66-54Model 66, 5" x 4", 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