LoPro 900GPH Bilge Pump Automatic. The Rule LoPro 900 Automatic is a fully automatic 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 degrees 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 body swivels up to 180 degrees for ease of installation. The hose attached can also swivel 360 degrees to route the hose perfectly. The pump features a sensing switch to control the pump. Unique to this pump are two settings, a high setting where the pump turns on when the water reaches 1-3/4 and a low setting where the pump turns on when the water reaches 1 . Features 900 GPH Low Profile Bilge Pump. Fits into hard to reach places. Fully Autuomatic- two settings available, high and low. Threaded discharge ports wi The Rule LoPro 900 Automatic is a fully automatic low profile Bilge Pump with a 900 gallons per hour 900 GPH Low Profile Bilge Pump. Fits into hard to reach places Features a tricuspid check valve to minimize back flow of water