Barka MD39 Series Elbow Shower HandleIf water conservation is an issue, this is the sprayer you want to get. The built in water conservation valve on the sprayer handle helps to reduce water usage To use, turn on water and set temperature. Activate the water conservation valve while lathering up with soap. This reduces water flow to a dribble, which allows the temperature to remain consistent, thus drastically reducing water consumption while showering. Combo sprayer with adjustable