Energy Saving Water Tank Level Control Automatic Valve. Features: This Valve is the Replacement of the Traditional Float Ballcock Which Can Be Applied to Various Systems of High Water Tanks Pools Water Towers of the Industry and Civil Construction Etc. Automatic Control Low Self-complementary Water Water Full Automatic Stop Four Intakes Large Volume of Water Beautiful Appearance Small Size Practical Simple Installation Without Electricity Easy to Use Long Life Low Failure Rate Saving Water Resources Specifications: Working Pressure Range: 0.2-10kg Applicable Medium: Clean Water Applicable Medium Temperature: 70 Size(L*W): Approx. 83*71mm / 3.27*2.8inch Diameter: Approx. 46mm / 1.81inch Port Size:xa01.81Inch Pressure:xa0High Pressure Standard or Nonstandard:xa0Standard Actuator Mode:xa0Without Manual And Instruction Media:xa0Water Is Smart Device:xa0no Power:xa0Hydraulic Material:xa0Plastic Package Includes: 1 X Water Level Control Valve .