DFSHOU proportional dosing pumps are designed for accurate fertilizer and chemical injection in agricultural irrigation and fertigation systems. Powered only by water flow and pressure, these hydraulic dosing pumps require no electricity and help maintain a stable dosing ratio even when flow conditions change. With dosing options from 0.2% to 10% and models suitable for different irrigation flow ranges, they are ideal for farms, greenhouses, orchards, nurseries, livestock watering systems and remote irrigation projects. DFSHOU also supports customization for flow specifications, dosing ratios, connection types and material requirements.