Uponor ProPEX Lead-free (LF) Brass Ball Valve provides a reliable, quarter-turn shutoff transitioning from 1/2 in. PEX-a pipe to 1/2 in. copper pipe. The quarter-turn valve is manufactured from high-quality, lead-free brass to meet safe drinking water requirements. Note that the ProPEX connection requires the use of a ProPEX expansion tool and ProPEX rings (sold separately).