The Jones Stephens C77440LF 1/2" PlumBite Push On Tee Brass is a fitting designed for use with Pex, CPVC, PE-RT, and copper pipes. Made of brass, this tee fitting is durable and reliable for various plumbing applications. It features a push-to-connect design for easy and quick installation without the need for additional tools. Additionally, this product comes with a California Prop 65 warning, indicating that it may contain materials known to the state of California to cause cancer or reproductive harm.