Master Flow | sku: 3570325 Master Flow 10 In. To 8 In. X 8 In. Wye The Master Flow 10 in. to 8 in. x 8 in. Wye is made of 30-Gauge, galvanized steel. The joint is used to transition from 1 pipe to 2 pipes in a heating and air conditioning application. It can be installed with sheet metal screws (not included). The wye... Log in for pricing