Helps maintain optimum water quality. Working under water pressure does not require electricity, gas, oil and so on. It can automatically and accurately dilute and mix fertilizers and . No matter what happens to the flow and pressure of the flow, the dose of the solution is always strictly proportional to the amount of water entering the equipment. It can be used for livestock, agriculture, lawn and garden, poultry, car wash etc. Specification: Material:Plastic Size(LD):Approx.40x20cm/15.75x7.87inch Proportional range: 0.5%-2%150-1500 Flow-rate range: 20L/H-2500L/H Working water pressure: 0.2-6BAR Flow temperature: 1-45 Inlet/Outlet: 25 mm/ 1 inch Package Includes: 1 piece Fertilizer Injector Proportioner Note: Please allow 1-2mm size differences due to manual measurement.