Product Overview: Product: Water Tank Float Valves (Set of 3) Purpose: To control the water level in various tanks and reservoirs, reducing the need for manual inspection and maintenance. Key Features: Efficiency: Designed to reduce water tank filling and inspection time while providing a high sealing effect and the ability to withstand high fluid pressure. Adjustable Arm: Features an adjustable arm made of sturdy ABS material, which is durable, rust-proof, and corrosion-resistant, with an adjustment range of over 180 degrees. Standard Thread Size: Equipped with a 1/2 inch NPT pipe thread, which is common and compatible with most pipe systems, including a standard gasket to prevent leakage. Low-Pressure Compatibility: Suitable for low-pressure gravity water supply systems, eliminating the need for external power or pumps. Wide Range of Uses: Ideal for use in ponds, livestock pools, aquariums, aquaculture, hydroponic reservoirs, and more, offering greater adaptability than metal float valves. Floating Ball Principle: Utilizes the floating ball principle to control water flow, maintaining a constant water level and saving time and effort. Specifications: Flow Direction: 1 direction Drive: Hydraulic control Color: Gray, white Material: Plastic Size: 17 x 4 x 4 cm / 6.69 x 1.57 x 1.57 inches Line Size: 1/2 inch, length about 17.8cm Package Contents: 3 x Float Ball Valves Usage Notes: The float valves are hand-tightened to ensure a leak-free connection. The included standard gasket helps to eliminate leakage issues. Safety and Quality: The product is made from high-quality plastic materials that are rust and corrosion-resistant, ensuring a long service life. Packaging: The package includes only the specified float ball valves; other products are not included.