The for replaces the traditional float for, no electricity, easy to use, long life, low failure rate, and save-water resources With automatic control, low self-replenishment and automatic water stop function food-grade,, sturdy & long for time service Widely used in: water tanks, water towers, swimming pools, solar energy, toilets, hot water boilers, animal drinking water Controls rate and opening and closing of the inlet pipe through the floating of the ball, Manufacturer: TFAOYS