-290/220 is a type of self-priming centrifugal pump. It is designed to transfer liquids, such as water, oil, and other non-volatile fluids. The PRF-290/220 is a positive displacement, rotodynamic pump and is a single-impeller, closed-coupled unit and is made from cast iron. The pump has an iron-bronze limited lubricated sealing system, an outer volute, and is single-phase for 110-120 VAC and 60 Hz power supply. It also has an adjustable pressure impeller and a maximum flow rate of 40 US gallons per minute (GPM), with a total head of 17.6 feet. Additionally, the PRF-290/220 has a maximum capacity of 86 liters per minute and is suitable for industrial use. It is efficient, reliable, and highly durable.