1, the proportion of fat injection pump (also known as the ratio of dilution) installed directly on the water supply pipe, without electricity, and water pressure as a driving force. Easy to use, just open the water can be. 2, "Proportional" is the key to maintain a constant precise dose, regardless of the flow into the pipeline and how the pressure changes, the amount of solution injected is always proportional to the amount of water flowing into the water pipe, the external adjustment ratio, flexible and convenient. 3, anti-corrosion. Easy to install, easy to operate. Variety of models, a lot of convenience.