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. High-Quality Material: The mini float valve with adjustable arm is made of high-quality plastic and brass, providing stability and resistance to rust, with reliable water inlet control performance. 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 prevent leaks. The applicability exceeds that of traditional metal float valves. Wide range of applications: Tank float valves are suitable for ponds, chicken coops, livestock watering tanks, aquariums, aquaponics, aquaculture, and hydroponic reservoirs, offering greater adaptability than traditional metal float valves. Packing quantity: 2 pack of water tank float valves, designed to reduce time spent on water filling and tank monitoring, with effective sealing performance under high pressure; features a compact float control design capable of withstanding higher fluid pressures. 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, maintaining sufficient water volume and clean water quality. Cattle drinking water usage is significantly reduced by more than 30%, helping lower wastewater discharge. Color: As shown in photo 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 to vary slightly from the real thing. Measurement allows an error of +/- 1-3 cm.