The Casainc rainfall shower faucet system with rough-in valve offers a luxurious showering experience, 16 inch Five functions of the hidden shower system to meet the requirements of multi-functional luxury bathroom. Big top spray design, with two functions of water mode, like rainfall and waterfall, to give you the ultimate luxury. The handwheel can adjust the water flow, want to open two or more water functions at the same time, can dispense water simultaneously, and the body jet can be a slightly adjusted angle. Additionally, the shower system features a thermostatic function aimed at preventing scalding and maintains a steady flow rate of 2.5 gallons per minute (Gpm), ensuring a safe and comfortable showering experience.