Best Seller | NORDFAB 8040025867 Round Reducer, 5 in x 4 in Duct Dia, Galvanized Steel, 22 Duct Reducer, For Nominal Duct Diameter 4 in, 5 in, Inlet Diameter 5 in, Overall Length 7 in, Product Type Reducer, Weight 1.5 lb, Material Thickness 22 ga, Maximum Pressure Rating 42 in wc, Maximum Temperature Rating 390 Degrees F, Material Steel,... ... more NORDFAB 8040025867 Round Reducer, 5 in x 4 in Duct Dia, Galvanized Steel, 22 Duct Reducer, For Nominal Duct Diameter 4 in, 5 in, Inlet Diameter 5 in, Overall Length 7 in, Product Type Reducer, Weight 1.5 lb, Material Thickness 22 ga, Maximum Pressure Rating 42 in wc, Maximum Temperature Rating 390 Degrees F, Material Steel,... | | $122.99 $109.99 go to store |