PEX is an acronym for cross-linked polyethylene. PEX Tubing is now being widely used for Plumbing and Radiant Heating applications. PEX is desirable due to its flexibility, durability, and thermal memory. Synonyms for PEX include PEX Tubing, PEX Pipe, and PEX Tube.
Cross-linked polyethylene. PEX tubing is commonly used for hydronic radiant floor heat, but increasingly also used for water supply lines. Stronger than PE.
a flexible pipe which is used for hot and cold water lines. There are many benefits to PEX pipe: it is generally quieter than rigid pipe systems, less likely to have scale buildup and is more withstanding in freezing temperatures than rigid pipes.