Question: is pex and uponor the same?
Answer: PEX-a is the highest flexibility PEX tubing and popular brands include Rehau, Uponor (formerly called Wirsbo) and ComfortPro. Typically, PEX-a is used with cold expansion fittings (F1960) or Uponor / Wirsbo's brand name Propex fittings. Other expansion fittings that can be used are F2080 or Rehau's Everloc fitting.