ProPress® 20738 Pipe Coupling With Stop, 4 in Nominal, Press End Style, Copper, ImportViega ProPress is the original press pipe joining system. Pressing pipe connections saves time and labor compared to traditional soldering and Viega ProPress offers more features and benefits than any other imitation press system. Fast and easy to use one squeeze of the trigger makes 1 2 to 4 in connections in four to seven seconds Reliable achieve a consistent, strong, reliable, watertight seal The high strength connection, when installed properly,