Check the listing for details. 8PC Water Float Valve with Adjustable Arm Plastic Water Filter Float 1/2 Inch.. Condition: New. Listed at 28.59 USD. Package quantity: 8 packs water tank float valves, which aim to reduce the time spent on filling and checking the water tank, sealing effect and high pressure; Using a smaller float control device, which can withstand greater fluid pressure. Adjustable arm: The micro float valve has an adjustable arm which is made of sturdy ABS, rugged and durable, rust-proof and corrosion-resistant, can be adjusted over 180 degrees. Dimension: The float ball valve has a 1/ 2 NPT thread, this is common in the pipeline world and the thread size is approx. 3/ 4 inch (with standard washer) to eliminate leakage. No power or pump required: The water float valves are applicable for low pressure gravity water supply systems; No power or pump required, hand tightening for leak-free operation. Wide range of use: The sink float valve is suitable for ponds, chickens, livestock pools, aquariums, fish and vegetables symbiosis, aquaculture, hydroponic reservoirs, and its adaptability is more than traditional metal float valves.