Item Type: Water pressure switch <br>Rated Voltage: 220V <br>Rated Current: 16A <br>Male Thread Diameter: Approx.12.5mm / 0.5in（G1/4） <br>Size: Approx.50 x 50mm / 2 x 2 in <br>Pressure Range(Optional): 1.0-1.8KG (fit for 125W) <br> 1.5-2.2KG (fit for 250W / 300W / 371W) <br> 1.8-2.6KG (fit for 50W) <br> 2.2-3.0KG (fit for 750W)<br>1、The contact point of water pressure switch is silver?plated with high?grade pure copper conductive sheet, with good response effect. <br>2、How to adjust the water pressure: cut off the power firstly. Tear down the plastic cover, press "+" to Increase pressure (anticlockwise), press "?" to reduce pressure (clockwise). <br>3、With high?quality insulating material, the water pressure controller is durable and high temperature resistant, its cuicuit not easily get damaged. <br>4、You can choose right water pressure switch according different power requiremet and the male thread diameter. <br>5、The water pressure control switch could automatically maintain a constant pressure in the pipeline as well as a constant water flow.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.1 x Water Pressure Switch<div>1 Bag of Accessories</div> Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.