Make Crimped Joints at PEX Water Line Fittings The heart and soul of the PEX system is the barbed fitting/crimping ring ...

Can you imagine a plumbing system that is so efficient that it keeps your water ... top-line-product while providing ...

If you tried to stick a PEX pipe into a larger fitting like that, all you're going to get is leaks and water damage. The purpose of a PEX expander is to physically increase the size of the opening ...