Premium Shower Faucet Set: All-metal design except for premium 59" PVC shower hose; One-piece shower valve is constructed of High-Quality solid brass, the sturdy brass construction can prevent corrosion and make the waterfall shower set longevity, you can feel a good quality after you receive it Cup Certified and Anti-scald: Advanced pressure balance ceramic disc cartridge with cup certification can effectively protect you and your family from scalding injury caused by sudden changes in hot water or cold water pressure; Comes with installation instructions, make your installation more easily 3-Function In 1 Knob Design: Just simply switch the diverter knob to select 12" shower head, hand shower, or tub spout to start your wonderful& relaxed shower; U.S.Standard 1/2" NPT thread connector, you don't need to worry if the connector will fit your pipe thread or not anymore Awesome Water Pressure: The water flow of the spout is 3.73 GPM at 60pis water pressure, your bathtub can be full of quickly, the water flow of the hand shower is 3 GPM and the rainfall showerhead is 2.4GPM at 60pis water pressure; Shalanda shower faucet combo set put off comfortable water flow which will bring you a wonderful shower