Size Flexibility - Compatible with 1/2-inch water supply pipe. Install the appropriate number of float valves according to your water tank size to meet different needs. Premium Materials - Float valve ball made of PE and other parts made of ABS. - Resistant to low temperature and corrosion for long-term service. Automatic Filling and Stopping - Features an adjustable arm. When water level is low, the valve gate opens to admit water. - As the level rises, the ball float and the adjustable arm form a flat angle to close, achieving automatic water level control. User-Friendly Operation - The valve ball angle is adjustable with an arm, allowing flexible settings based on water level requirements. - Water level is automatically controlled without power supply or a pump. Use scenarios - Farm applications: Automatic refill for livestock troughs to ensure a constant water supply with minimal maintenance. - Garden and nursery irrigation: Topped-up water reservoir maintains a stable level, preventing overflow or drying out. - Rainwater or outdoor storage: Keeps household or irrigation tanks topped up automatically, without electricity. Performance and compatibility at a glance - Function: Automatic fill and stop to maintain desired water level. - Compatibility: 1/2-inch water supply pipe; scalable by installing multiple valves for larger tanks. - Size: Adjustable arm to set the desired water level. - Material: PE ball and ABS components for durability in varying temperatures. - Reliability: Simple, power-free operation with automatic control.