Easy Water Flow Control: The shower flow control valve allows you to control the volume of water or completely shut off the water flow during your shower. This gives you complete control over the water flow. Convenient Water Saving: An effective addition to a high-flow shower, the valve helps reduce water pressure, eliminating hot water waste during lathering. Easy use can help you save money. Robust Construction: Entirely made of brass, the quality material and craftsmanship ensure durability and resist corrosion and tarnishing. Smooth Operation, No Leaks: The internal ceramic valve allows the lever to slide smoothly from left to right, creating a tight seal without leaks. Add this valve to a dripping shower head without replacing the entire plumbing system. Standard Connection, Easy Installation: The male and female threads are 1/2 \" IPS for standard handheld showers, wall-mounted shower heads, or bidet sprayers. The valves fit most shower heads, shower arms, hoses, and water lines. Easy to install by hand or with a wrench.