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- Sheet Metal Duct Reducer Product #: 66-53Model 66, 5" x 3", 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