Sharkbite, 3/4" closed trunk with 1/2" branches 4-branch poly PEX expansion multi-Port tee fitting. Multi-port tee allows for easy connection to PEXA, improving install efficiencies and reducing the risk of installation errors. Minimizes the risk of leaks by eliminating excess connection points. Made from high-performance Acudel Polymer. Connects to PEXA pipe with expansion rings. Minimum working temperature/pressure: 33°F @ 160 psi. Maximum working temperature/pressure: 210°F @ 150 psi.