We may receive a commission on purchases made from links. Two of the most common kinds of modern piping materials for plumbing work are PEX and PVC. PEX, which stands for cross-linked polyethylene, ...

Household plumbing systems use PEX for pipes to supply water and carry away sewage. The term PEX stands for "crosslinked polyethylene." PEX piping is manufactured by melting high-density polyethylene ...

PEX piping (shorthand for cross-linked polyethylene) costs less than half the price of copper and installs much faster. And ...