Automatic float valve Indoor installation water inlet float valve, no need electricity, automatic stop when the water is full, and the water flow is increased by 20% compared to the traditional . Safe material: Food-grade environmentally friendly nylon does not release harmful substances. The 304 stainless steel fixing nut will not cause secondary pollution to drinking water due to rust. Exquisite Workmanship: The automatic water inlet float valve comes with a delicate and smooth appearance, high temperature resistance, high pressure resistance, wear resistance, rust resistance, durable. Uses: Applicable to automatic water replenishment devices such such as water tanks, water towers and solar water heaters. It can also be used in swimming pools, aquariums for livestock and poultry, aquaculture and aquariums. Excellent performance: The top automatic water level control valve switch is of small size and takes up little or no space, providing more convenience for installation, time and effort saving.