Can visualize and regulate the water pressure to protect the entire irrigation system. Features: Visualized pressure adjustment , protection control system, guarantee the spraying effect. The pressure can be adjusted by rotating the wheel to adjust the fine working pressure. The size and material of the handle Easy-to-use wheel allows firm grip and easy adjustment. The water inlet has G3/4in internal threads and the water outlet has G3/4in external threads, which can be directly connected to the threaded faucet and avoids installation problems. Can be used in conjunction with a watering timer to control the plant watering schedule. The pressure reducing V-valve has high precision and fast response. This helps protect your tools for much longer. Features: Material: plastics Item size: approx. 85*50mm/3.3*2.0in Pressure gauge diameter?: 47?mm/1.9?in Item Weight: Approx. 123g / 4.3 ounces Measurable Water Pressure: Max. 1mpa (140psi / 10bar) Package size: 95 * 95 * 60 mm / 3.7 * 3.7 * 2.4 inch Package weight: 150g / 5.3 ounces Packing list: 1 * water pressure tool 1 * instruction manual< /li>