Packing : 3 water tank float valves, the is to reduce the water tank filling and inspection time, sealing effect and high pressure; use a smaller float control device, can withstand greater fluid pressureAdjustable 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 above 180 degreesSize: The float valve has 1/2 NPT pipe thread, which is common in the pipe world, and the thread size is about. 3/4 inch (with standard gasket) to eliminate leakageNo power or pump required: The water float valve is suitable for low-pressure gravity water supply ; no power or pump required, hand-tightened without leakageWide range of uses: The tank float valve is suitable for ponds, chickens, livestock pools, aquariums, of fish and vegetables, aquaculture, reservoirs, and adaptability is stronger than metal float valves.Floating ball principle:The floating ball valve of the storage tank uses the floating ball principle to control the inlet and outlet water switches to achieve a constant water level effect, saving time and labor for manual inspection.specification:Flow direction: 1 directionDrive: hydraulic controlColour: gray, whiteMaterial: plasticSize: 17 x 4 x 4 cm / 6.69 x 1.57 x 1.57 inchesLine size: 1/2 inch length about 17.8cmPackage Contents:3 x float ball valveOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.