Poly F1960 Expansion Fittings

F1960 – the PEX pipe is expanded and uses a ring made out of PEX to complete the connection. The fittings are available in both lead free brass and poly (PPSU). This method is only recommended for use on PEX-a, PEX-c and some PE-RT tubing. They are often referred to as Wirsbo Fittings.