Polypropylene Pipe and Fittings
(1) Polypropylene pipe and fittings used for hot and cold potable water systems shall conform to CSA B137.11, “Polypropylene (PP-R) Pipe and Fittings for Pressure Applications”.
Article 7.2.5.15. Ontario Regulation 332/12 Building Code, O. Reg. 332/12: BUILDING CODE (ontario.ca) © Queen’s Printer for Ontario, 2021.