PEX (cross-linked polyethylene) is a flexible plastic pipe that has gained popularity due it being cheaper (and often easier) than copper or PVC. Use for questions about working with the pipe, and use with the [plumbing] tag

PEX (cross-linked polyethylene) is a flexible plastic pipe commonly used in both new and existing installations. PEX offers

  • Lower cost than copper and often PVC
  • Requires no glue, just crimping or push-in/stab connectors (like the Sharkbite brand)
  • Easier adaptation to existing installations (push-in connectors work with copper and PVC, and compression adapters are easy to find)
history | excerpt history