Poly-Alloy Crimp fittings are a perfect match for domestic pex tubing. These fittings are produced from an engineered thermoplastic polymer called PPSU. This resin offers many improved performance characteristics that make it an excellent choice for molded components installed in the demanding environment of a hot and cold-water plumbing system.
Poly-Alloy fittings are made to ASTM International F2159 and F877 standards. They have the NSF-pw rating and are certified to Canadian Standard Association B137.5.