Rule LoPro 900GPH Bilge Pump - Non-Automatic [LP900D]LoPro 900GPH Bilge Pump Non Automatic The Rule LoPro 900 non automatic is a low profile Bilge Pump with a 900 gallons per hour capacity. Designed for tight spaces, the height of the pump is only 2 1 4". It features a threaded discharge nozzle to which you can attach either a straight or a 90 fitting (included). In addition, you may use the tricuspid check valve {included} on the straight fitting to minimize the back flow of water. The entire discharge