Feature: 1. Wide range of use, it is suitable for wastewater irrigation, equipment maintenance, gardening and flowers, livestock breeding, environmental protection and water treatment, industrial hygiene, vehicle cleaning, food processing, printing industry or other industries that require constant ratio dilution. 2. Convenient to use, you only need to inject the device proportionally, install it in the water supply pipeline, without electric drive, the flowing water pressure can generate power. 3. Hydrodynamic engine, it drives the piston and connecting rod to directly inhale and dissolve the liquid additives in the water stream. While pressing the water out, the additives are evenly sucked into the water stream through the pipe, and the upward and downward movements are repeated to achieve the uniformity and continuous movement of the additives. The effect of adding to flowing water. 4. Simple installation, you only need to install it according to the instructions, no need to watch while working, you can be busy with other things. 5. Equipped with a vent valve, its scale is accurate and clear, the dosage can be adjusted, and the proper ratio can be adjusted accurately, which is convenient to use. Specification: Item Type: Fertilizer Pump Product Size: Approx. 46.5x16.3cm / 18.3x6.4in Model: Z3-4 Transfer Interface: Outer Diameter 12mm / 0.5in Water Inlet and Outlet Thread: G3/4 Inch Proportion Range: 0.4%-4% Flow Range: 10L/H-2500L/H Working Water Pressure: 0.5-4.5kg/C㎡ Continuous Operation: >100T Water Temperature Range: 4-30℃ Weight: Approx. 1726g / 60.9oz Material: PVC Uses: It is suitable for agricultural irrigation, equipment maintenance, gardening flowers, animal husbandry, environmental protection water treatment, industrial disinfection, car wash foam, food processing, industrial hygiene, printing and other industries that require constant ratio dilution.. Package List: 1 x Fertilizer Pump1 x Accessory Package(3 x Part)1 x Transparent Tube + Filter1 x Bracket1 x English Manual2 x Transfer Interface1 x Fixed Ring1 x Stainless Steel Ring