Product Details PEX Expansion Coupling. Lead-Free. Installed using expansion method (expander tool + expansion rings). Feature 鈥?Material: PPSU 鈥?Connection: Cold Expansion 鈥?100锛?LEAD FREE. Corrosion resistant, lighter weight, higher durability. 鈥?Direct replacement for Uponor EP series 鈥?For plumbing or heating applications. 鈥?Rated up to 200F, 200 psi Plastic adapterPPSU Pipe Fittings price website:http://www.ritablepipe.com/pipe-fitting/ppsu-pipe-fittings/