Usage Tips:Adjustable arm: The float valve has an adjustable arm that can be adjusted over 180 degrees to adapt to different water levels. No power source or pump required, hand tight for leak-free operation. Material: The Mini float valve is , with adjustable arm, made of plastic and brass, more stable and will not rust, has good water inlet control function, will bring you a good experience. Dimensions: The float valve uses 1/2 NPT pipe threads; this is common in the plumbing world and has thread sizes of approximately 1/2 inch with standard washers to eliminate leaks. The applicability exceeds that of traditional metal float valves. Wide range of applications: Tank float valves are suitable for ponds, chicken coops, livestock ponds, aquariums, aquaponics, aquaculture, and hydroponic reservoirs, and are more adaptable than traditional metal float valves. Packing quantity: 2 packs of water tank float valves, designed to reduce the time of water filling and checking the water tank, sealing effect and high pressure; adopts a smaller float control device, which can withstand greater fluid pressure. The water level floating principle of the float ball is used to control the water inlet and outlet switch to achieve a constant water level effect, keep the water volume sufficient, and the water quality is always clean. Cattle drinking water is significantly saved by more than 30%, reducing sewage discharge pressure Colour:Photo Color Material:plastic+metal Package Contents: 2 x Float valve Only the above package content, other products are not included. Note: Light reflection 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.