Product Name: Automatic Water Level Controller. Product Material: PA66 Food Grade Nylon Product Color: White Shipping Quantity: 1 Set Product Size: As Shown Screw Accessories: Stainless Steel Working Pressure: 0.02~0.8 MPa Applicable medium: clean water (if there are impurities, it should be cleaned regularly) Temperature resistance: -20~80C Product features: small volume/large water flow/stable water failure. Made of high quality plastic, strong and durable, has a long service life This valve has a beautiful appearance, is small, convenient and easy to install With automatic control, low self-filling and automatic water shut-off Easy to operate without electricity, low failure rate and save money This valve replaces the traditional floating ball and can be used in flooded tanks, swimming pools, industrial water towers and other systems.