Package quantity: 3 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 Size16cm(whole long) Package Included3pcs* water tank float valves