Features High-Grade Conductive Sheet--- The water pressure switch features a silver-plated contact point made of high-grade pure copper, ensuring excellent response and conductivity for reliable performance. Easy Pressure Adjustment--- Adjusting the water pressure is simple and convenient. Cut off the power, remove the plastic cover, and use the "+" and "‑" buttons to increase or reduce the pressure. No hassle, just the right pressure for your needs. Durable Construction--- Built with high-quality insulating material, this water pressure controller is designed to withstand high temperatures and resist damage to its circuit. It ensures long-lasting durability and reliable operation. Versatile Compatibility--- Choose the perfect water pressure switch based on your specific power requirements and male thread diameter. Find the ideal fit for your system to achieve optimal performance. Automatic Pressure Maintenance--- With this water pressure control switch, you can enjoy a constant pressure in your pipeline and a steady water flow. It automatically adjusts to maintain a consistent pressure, providing uninterrupted water supply. Specification:Item Type: Water pressure switch Rated Voltage: 220V Rated Current: 16A Male Thread Diameter: Approx.12.5mm / 0.5in（G1/4）Size: Approx.50 x 50mm / 2 x 2 in Pressure Range(Optional): 1.0-1.8KG (fit for 125W)                                             1.5-2.2KG (fit for 250W / 300W / 371W)                                             1.8-2.6KG (fit for 50W)                                             2.2-3.0KG (fit for 750W) Package List:1 x Water Pressure Switch1 Bag of Accessories Note:For example (1.5‑2.2KG) technical explanation: when the water pressure is 1.5KG, the water pump will start automatically, and the 2.2KG pressure type water pump will stop working. Package List 1 x Water Pressure Switch 1 Bag of Accessories