Worldwhere Shower Flow Control Valve Water Flow Control Valve Our shower flow valve is designed to adjust the water flow to your liking or adjust the water pressure. Stop dripping cut off valve can completely shut down water,don't worry about water waste caused by dripping Easy to install Comes with rubber gasket, simple attach to an existing shower plumbing without tools. Premium Construction Solidly constructed of brass with premium finish for long term durability, resisting daily rust and tarnishing. Standard thread 1/2 ips thread on both ends, can be used for hand shower, fixed shower, hand sprayer. Easy installation The valve comes with washer, just install the washer and tighten it,it can be completed in 5-10 minutes