NORDFAB 8010002298 Round Manual Blastgate, Cast Aluminum, 20 GA, 5 1/4 in W, 5
$66.89
Blast Gate, For Nominal Duct Diameter 4 in, Inlet Diameter 4 In., Body Material Aluminum, Overall Length 5 1/2 in, Product Type Manual Blast Gate, Weight 2.25 lb, Maximum Pressure Rating 42 in wc, Blade Material Galvanized Steel, Maximum Temperature...