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Sioux Chief ASTM F2159 Crimp™ polymer PEX fitting system shall be used in hot and cold water distribution systems. Fittings are approved for use with ASTM F876 PEX tubing with copper crimp ring or stainless steel compression sleeve.
Sioux Chief PowerPEX® 645PX2 Coupling, 1/2 in F2159 PEX x 1/2 in F2159 PEX, Polyphenylsulfone