PEX water lines can use shut off valves which might be barbed and so are crimped in place by using a Exclusive crimp ring and Device. They could also use drive-to-join (generally known as Sharkbite) fittings which bite down and compress an o-ring to create a water-tight seal.I carry guide cost-free brass nipples within the van, and I mounted a niceā€¦ Read More