The Dab PULSAR 50/50 M-NA is a single phase 5" borehole pump. The Dab Pulsar range are 5" multistage submersible borehole pumps, designed for drawing water from wells or boreholes, but also useful for pumping water from tanks, including septic tanks. The range features airtight casing - the motor is cooled by the pumped liquid. This NA version does not include a float switch. There are versions available with a built in float switch for automatic operation.