Water float valve for aquarium, 1/2 inch auto shutoff for pondsAdjustable 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.<br> High-Quality Material: The Mini float valve is durable, with adjustable arm, made of high-quality plastic and brass, more stable and will not rust, has good water inlet control function, will bring you a good experience.<br> 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.<br> 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.<br> 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.<br> 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.<br> Cattle drinking water is significantly saved by more than 30%, reducing sewage discharge pressure<br> Colour:Photo Color<br> Material:plastic+metal<br> Package Contents:<br> 2 x Float valve<br> Only the above package content, other products are not included.<br> 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.