Usk Unitech 4sdm307 Deep Well Electric Submersible Water Pump

Indicates it is a 4-inch pump, designed for boreholes with a minimum 4-inch (100mm) diameter casing.SDM: Stands for Submersible Deep Well Multi-stage pump with a single-phase motor.3: Represents the approximate rated flow rate of 3 \(m^3/h\) (roughly 50 liters per minute).07: Indicates there are 7 impellers (stages), which determine the maximum pressure or "head".