Feature: 1. WIDELY APPLIED: Dosing pump is suitable for animal health, food safety and hygiene, irrigation, metal processing, nutrient delivery systems, printing, car washing, water treatment, diluting solutions and so on. 2. ACCURATE AND EFFECTIVE: The water powered dosing pump uses reciprocating dynamic sealing technology for greater accuracy. Water powered fertilizer applicator, no electricity required. 3. UNIFORM MIXING: Fertilizer dosing pump has a unique cylinder and piston movement area design to ensure more uniform and effective mixing of liquid and medication. 4. PREMIUM PERFORMANCE: The fertilizer pump uses volumetric proportioning to ensure that the chemical mixture remains constant regardless of pressure and flow rate changes. The flow rate decreases as the water passes through the fertilizer applicator. 5. PACKAGE INCLUDES: Package includes water powered dosing pump x 1, hose x 1, base x 1, washer x 4, regulator x 1. Easy to assemble, practical and convenient. Specification: Item Type: Fertilizer Pump Material: Plastic Specifications: Proportional Pump(2502H) Use: Fertilizer Pump for Mixing Water and Medicine for Chickens in Farms. Package List: 1 x Pump1 x Hose1 x Base 4 x Gasket 1 x Regulator Note: 1. Make sure that the container holding the liquid additive is not empty when using the automatic doser. 2. Bleeder valve: At the beginning of starting the doser, the bleeder valve should be pressed down for a few seconds to discharge the air already inside, this process will result in a small amount of water flowing out, and after the air is discharged, the bleeder valve should be closed quickly.3. Ensure that filtering equipment must be installed at the water inlet end of the doser during installation and use.By connecting it to the main pipe, the hydraulic drive does not need extra power and will not cause pressure loss on the main pipe.