The Grundfos SQ 3-inch submersible pump offers multiple functions, and there is always one that suits your needs. SQ is a compact 3-inch multi-stage centrifugal pump that can be installed in a bore no larger than the size of the pump body itself. Equipped with built-in electronic devices, SQ pump installation and operation are very easy. This series of pumps can provide reliable water supply at any time. Equipped with permanent magnet motors, these flexible and compact pumps provide high efficiency with a head of up to 200 meters. The SQ pump is connected to the Grundfos CU 301 control box and can provide constant pressure water supply.