Can visualize and regulate water pressure to protect the entire irrigation system. Features: Visualized pressure adjustment, guards control system, guarantee the spray effect.The pressure can be adjusted by rotating the wheel to adjust the fine working pressure. or > Easy-to-use wheel handle size and material allows for a firm grip and easy adjustment. Water inlet has G3 or 4in internal threads and water outlet has G3 or 4in internal threads. Water tap has G3 or 4in external threads, which can be directly connected to the threaded faucet and avoid installation trouble. Can be used in conjunction with a sprinkler timer to control the plant watering schedule.The pressure reducing V-valve has high accuracy and fast response. This helps to protect your tools much longer. Features: Material: Plastics Item Size: Approx. 85x50mm or 3.3x2.0in Gauge Diameter: 47 mm or 1.9 in Item Weight: About 123g or 4.3oz Pressure Gauge: 39 measurable water: max. 1mpa (140psi or 10bar) Package size: 95x95x60mm or 3.7x3.7x2.4in Package weight: 150 g or 5.3oz Packing List: 1 x Water Pressure Tool 1 x Water Pressure Tool 39 instructions