Pex Expansion Ring - Products
PEX expansion rings are used with the cold-expansion (PEX-A, ASTM F1960) method. The ring and pipe are expanded together with a tool, then shrink back tightly around the fitting for a strong, full-flow joint. Moonshine Bath stocks PEX-A expansion rings in common sizes and bulk packs.
The expansion system gives reliable, freeze-tolerant connections. Each pack 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
Are expansion rings the same as crimp rings?
No. Expansion rings are for the PEX-A cold-expansion (F1960) method and are stretched with the pipe, while crimp rings are compressed onto barbed fittings. The two systems use different rings, fittings and tools.
What pipe works with expansion rings?
Cold-expansion rings are designed for PEX-A tubing, which is flexible enough to expand and shrink back. Do not use them with PEX-B or PEX-C crimp systems.