Uponor North America has launched six ProPEX Lead-free Brass CPVC Adapter Fittings for transitioning from CPVC to PEX in commercial plumbing and hydronic-distribution piping systems. The fittings, which are available in 1 1/4-, 1 1/2- and 2-inch sizes, are offered in a spigot and socket adapter and feature the ASTM F1960 ProPEX expansion system for connecting to PEX piping. The ProPEX end of the fitting is tested and listed to NSF 61 and NSF 372. The CPVC end is designed to transition from copper-tube-size pipe and fittings and is listed to the ASTM D2846 standard for CPVC fittings.