CPVC Brass Tee: Durable and Reliable Connections for Hot and Cold Water Systems The CPVC Brass Tee is an essential fitting for creating robust and leak-proof branch connections in both hot and cold water plumbing systems. Combining the heat resistance of CPVC (Chlorinated Polyvinyl Chloride) with the strength of brass, this tee ensures superior performance and longevity in residential, commercial, and industrial applications.