The Rule LoPro No 153 900 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 2.25 in.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 body swivels up to 180° for ease of installation. The hose attached can also swivel 360° to route the hose perfectly.Features: 900 GPH Low Profile Bilge Pump Fits into hard to reach places Non-automatic, requires float and or panel switch to automate Threaded discharge ports with multiple fittings available Features a tricuspid check valve to minimize back flow of water