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The NIBCO PX00558C PEX poly insert coupling is designed for use with NIBCO PEX in potable water and radiant heating systems. The poly insert coupling is made of PPSU polyphenylsulfone and features PEX end connections. This fitting connects two lengths of PEX tubing together.
NIBCO PEX fittings are lightweight, easy to install and maintenance-free. This PEX system requires fewer fittings than traditional rigid plumbing systems resulting in fewer potential leak paths.
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