SharkBite Lead-Free Compression Stop Valve Tee Adapter. It is used for connecting copper, PEX, and CPVC in any combination. It is made of DZR brass and certified to 200 PSI and 200 degrees Fahrenheit. Design certified to ASSE 1061/NSF61 standards. Meets UPC, IPC, and CUPC requirements. Fittings are listed with IAPMO and are certified for use on potable and hydronic water distribution. Certified for underground applications and as a manufactured joint without the need for access panels. Lead-Free compliant to federal law 111-380. Bagged.