Features: Made of high quality PP material, it is durable, corrosion resistant and wear resistant. With deflation valve and precise and clear scale, the dosage can be adjusted and easy to use. Powered by the pressure water flow, the pressure loss is small and does not require any other power facilities. Configure precise ratio settings that are unaffected by water flow and pressure. This product is suitable for fertilizer irrigation, equipment maintenance, horticultural flowers, livestock farming, environmental protection and water treatment, industrial hygiene, food processing or other industries that require a fixed dilution. Specification: Condition: 100% Brand New Material: PP Thread: G3/4in Proportion Range: 0.4%-4% (1:25-1:250) Flow Range: 20L/H-2500L/H Working Water Pressure: 0.2-3bar Continuous Work: >100T Water Flow Temperature: 4-30 ° C Weight: Approx. 1866g / 65.8oz Size: Inlet Diameter: Approx. 32mm / 1.3in Outlet Diameter: Approx. 25mm / 1.0in Pump: Approx. 49x16cm / 19.3x6.3in Application: Fertilizer irrigation, equipment maintenance, horticultural flowers, domestic farming, environmental protection and water treatment, industrial hygiene, vehicle cleaning, food processing, printing industry, other areas that require a fixed range. Package List: 1 x Proportional Pump 1 x Bag of Round Gaskets (4Pcs) 1 x Buckle 1 x Capillary Tube (With Filter) 1 x Wrench Note: 1.Please allow 0-1 inch error due to manual measurement. Thanks for your understanding. 2.Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard. .3. Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.