Red and blue PEX tubing coils with brass and polymer press fittings and copper crimp rings on a workbench

Types of PEX Fittings: The Five Families, and Which Ones Can Legally Share a Wall

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There are five types of PEX fittings once you count them the way a plumbing code does, by the standard that lists each one. The five: cold expansion, insert bodies gripped by a copper crimp ring, the same bodies gripped by a stainless steel clamp, push-fit, and threaded or transition adapters. One adopted US fitting […]

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