Jomar’s T-422G and S-422G lead-free expansion PEX ball valves feature an ASTM F1960 cold expansion PEX connection and are available in sizes ranging from 1/2” to 2”.  IAPMO-certified as lead-free, they come with a stainless-steel ball and stem and are 100% quality-tested in the United States. Complementing the existing lead-free crimp-style PEX valve offering, the T/S-422G lead-free expansion PEX valve line can be used in a variety of applications, including residential and commercial plumbing.  Jomar Valve.