Features: Automatic float valve, based on a new technology platform and completely overcome the many traditional shortcomings. Floats always be floating in the water, when the water rise, floats followed the rise. And rod driven by rising also rise. Connected to the rod and the valve, when up to a certain position, close water. Non-toxic, tasteless. Water flow is big, high efficiency. Easy to install and flexible adjustment, can be installed at any angle. Suitable for corrosion, chemical, medical, household, aquarium and so on. Specification: Material: POM Color: White Package Included:1pcs Note: 1.Due to the light and screen difference, the item's color may be slightly different from the pictures. Please understand. Make sure you don't mind before you bid. 2.Size just for reference. Please allow few differences due to manual measurement.