We have DC12V , DC24V , AC220V in stock , you can choose the voltage you like !      Brass Parts metal (NOT Zn Alloy inside ! ) , Copper Coil (NOT Aluminium)       the arrow means cold water flows to solar water heater tank   if you use it with water tower , then your water flow in very low pressure , you can remove this spring before mounting our solenoid valve with water pipes , it let water into your solar water heater more smoothly. If your water pressure is high , such as your water is from very high maintain reservoir ,your water will flow in high pressure , you can keep this spring
Trustpilot
1 month ago
2 days ago
