The Nibco PEX poly plug is designed for use with Nibco PEX in potable water and radiant heating systems. The Nibco PEX poly plug is made of PPSU polyphenylsulfone provides a permanent end to a PEX line or temporarily for pressure testing. Please refer to
Made from high performance acudel polymer
Connects to PEX pipe with copper crimp rings or stainless steel clamp rings
Certified for use in potable water and hydronic heating system applications