2 Functions Pressure balance shower valve: Advanced pressure balance ceramic disc cartridge with cUPC certification can effectively protect you and your family from scalding injury caused by sudden changes in hot or cold water pressure and prevent water hammer. Brass shower rough-In mixer valve: It casted from high quality brass to ensure durability and no corrosion, it is a great choice if you want to renovate your bathroom. It is suitable for many styles of bathrooms, it can efficiently avoid fingerprint,fade-resistan. The Connector Size of the valve: 1/2" NPT , U.S. plumbing connections, you don't need to worry if the connector size will fit your pipe thread or not any more. Easy operation: Smooth, long lasting, drip-free operation ceramic disc cartridge, Single lever design for effortless flow and tempreture control. 5 years Warranty: We offer 5 years manufacturer warranty for our shower faucet set, if you have any questions or need any assist, please feel free to contact us first, we will try our best to help you in 24 hours. Rough-in shower valve