Cold Expansion Polyalloy Coupling - Products
A cold-expansion polyalloy coupling joins two PEX-A lengths in a straight run using the F1960 expansion method, with a corrosion-proof polyalloy body and full-flow bore. Moonshine Bath stocks polyalloy expansion couplings in common and reducing PEX sizes.
Extend or repair a PEX-A run with confidence. Each coupling ships free across the USA, Canada and Mexico, leaves the warehouse within 24 hours on weekday orders before 2 PM EST, and is backed by our price match plus 10 percent beat guarantee.
Frequently Asked Questions
Can I join two different PEX sizes with a coupling?
Yes. A reducing coupling joins two different PEX sizes in line. For same-size joins use a straight coupling. Check the listing for the size combination.
Are expansion couplings full bore?
Polyalloy expansion fittings have a larger internal bore than metal insert fittings, so they restrict flow less, a key advantage of the cold-expansion PEX-A system.