Used to create an efficient potable water distribution system when using Zurn PEX crosslinked polyethylene tubing. For hot and cold water. Ready-to-use. Reduces installation time and save energy by running dedicated lines to each plumbing fixture (less supply lines and connectors). Made of polymer. The outlet ports accept 3/8" or 1/2" PEX tubing, PEX connectors or the QuickPort Add-A-Port system. 1/2" male outlet ports and four 1" male inlet/outlet posts. 10 1/2” ports.