Accurate and Effective: 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. Premium Material: This proportional pump is made of high quality ABS material, which is sturdy, durable, and wear resistant. More Convenient: The fertilizer injector proportioning dispenser is working underwater pressure does not require electricity, gas, oil, and so on. Practical Function: The proportional pump can automatically and accurately dilute and mix fertilizers and . Helps maintain water quality. Application: The fertilizer injector proportioning dispenser can be used for livestock, agriculture, lawn and garden, poultry, environmental water treatment of animal husbandry and breeding, etc. Specification: Material: ABS Color: Blue and Black Size Chart: 38cmx12cm/14.96inchx4.72inch Flow range 10- 2500L/h Working water pressure 0.3-6bar Mother Liquid flow rate 0-2,500 liters/hour Working temperature 0-40 degrees Celsius Package Includes: 1 Fertilizer Pump Note: 1. Please allow slightly error due to manual measurement. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. 3. Wish you a wonderful online shopping!