Uponor’s ProPEX lead-free brass CPVC Adapter Fittings allow for transitioning from CPVC to PEX. The fittings, which are available in 1 1/4”, 1 1/2” and 2” sizes, are offered in a spigot and a socket adapter, and all feature an ASTM F1960 ProPEX expansion system. The ProPEX end of the fitting is manufactured with lead-free brass and is tested and listed to NSF 61 and NSF 372. The CPVC end of the fitting is designed to transition from copper tube size pipe and fittings and is listed to the ASTM D2846 standard for CPVC fittings.