Rule's latest standard pump design, the LoPro allows for pumping out of tight spaces and shallower bilges. The LP900D model uses a unique double system for sensing water, to ensure that the pump only ever operates when water is present, and switches off efficiently when it's not. If water is confirmed, the pump will run to empty the bilges. A second sensing mode is also available, which sets the pump to run at either 1.3" (3.25cm) or 2" (5cm). The pump body rotates to allow discharge in any direction. A selection of straight and 90 degree ports, and a non-return valve for use with straight ports, are supplied. The LP900D model has no sensors and can be operated via a manual switch or float switch when water reaches up to 2".