2pcs Solenoid Valve 1 /2 Inch DC4.5V Water Control Electric Pulse Plastic Solenoid Valve Accessory ,Durable Materia

Input and output thread size is G1/2 inch The valve is open when it is positive pulse, off when it is negative pulse. Fine workmanship, stable and long service life, not easy to break down. Mainly used for automatic switch control of sanitary ware, water control system, garden irrigation system, energy-saving equipment, etc. Power-saving and water-saving, good helper in daily life.