Equip your semi to be Ready for the Road Ahead , with the Power Products 1/2" Composite Push-In Straight Union, a key piece that acts as a connection point between two tubes or hoses. To repair or bring together two different pipes or hoses, this replacement piece simply pushes into each hose to allow a straight line connection. Fashioned with a strong and reliable design to resist mechanical pull-out. FleetPride is your First Click in Heavy Duty .