Packing quantity: 3 water tank float valves Adjustable arm: The miniature float valve has an adjustable arm made of sturdy ABS, which is durable, rust-proof and corrosion-resistant, and can be adjusted up to 180 degrees Size: The float valve has 1/2 NPT pipe thread, a common standard in plumbing applications; thread size is approximately 3/4 inch (with standard gasket) to help prevent leakage No power or pump required: The water float valve is suitable for low-pressure gravity water supply systems; operates without electricity or a pump; hand-tightened installation helps prevent leakage Wide range of uses: The tank float valve is suitable for ponds, poultry watering systems, livestock pools, aquariums, aquaponics, aquaculture, and hydroponic reservoirs Floating ball principle: The float valve uses buoyancy to control water inlet and outlet, maintaining a consistent water level and reducing the need for manual monitoring Specifications: Flow direction: Unidirectional Drive: Hydraulic control Color: Gray, white Material: Plastic Dimensions: 17 x 4 x 4 cm / 6.69 x 1.57 x 1.57 inches Thread size: 1/2 inch Total length: Approximately 17.8 cm Package Contents: 3 x float ball valve Note: Color may vary slightly due to lighting and screen settings. Measurement tolerance: ±1–3 cm.