Two Functions Complete Shower Faucet Set, Shower Combo Set with Rough-in Valve

❤【cUPC-certified Pressure Balance Valve (with Pre-embedded Box)】 Monitors water pressure balance to avoid scald, our mixing valve has an adjustable hot and cold water flow device and a check valve, which helps us to adjust the proper flow of hot and cold water when necessary. At the same time, this main body with a pre-embedded box serves as an auxiliary installation and post-maintenance function. ❤【Energy Efficiency】 By maintaining a consistent water temperature, the retro pressure balance valve shower system can help reduce energy consumption and lower utility bills. ❤【Flow Rate】 4.23 GPM for top spray; 4.5 GPM for Hand shower.