Versatile - The device can be connected direct to a tap, a water controller or even to the end of a hose. Reduces your tap water pressure for Automatic Watering systems Can be used in conjunction with Automatic Watering controllers Includes accessory adaptor allowing you to fit the Pressure Regulator onto a hose connector Includes connectors for both 13mm & 4mm hose Fits both 1/2" (G1/2) and 3/4" (G3/4) BSP taps