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. The arm can be adjusted up to 180 degrees. Size: The float valve has a 1/2 NPT pipe thread, a standard size in plumbing applications. The thread measures approximately 3/4 inch (with standard gasket) to help prevent leakage. No power or pump required: The water float valve is designed for low-pressure gravity-fed water supply systems. It operates without electricity or a pump and seals securely when hand-tightened. Wide range of uses: Suitable for ponds, poultry watering systems, livestock troughs, aquariums, aquaponics, aquaculture, and hydroponic reservoirs. Offers strong adaptability compared to traditional metal float valves. Floating ball principle: Uses a buoyant ball mechanism to automatically control water inlet flow, maintaining a consistent water level and reducing the need for manual monitoring. Specifications: Flow direction: Unidirectional Actuation: Hydraulic 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 valves Note: Color may vary slightly due to screen settings and lighting conditions. Measurement tolerance: ±1–3 cm.