LoPro LP900D Bilge Pump is low profile with a 900 gallons per hour capacity. Designed for tight spaces, the height of the pump is only 2 1/4". Threaded discharge nozzle attaches to either tthe included straight or 90 degree fitting. It also includes a tricuspid check valve for the straight fitting which can be used to minimize the back flow of water. The entire discharge body swivels up to 180 degrees for easy of installation. The hose can also swivel 360 degrees for better routing. LoPro LP900S has two automated settings, enabling the pump to turn on when the water reaches wither 1" or 1 3/4". In addition, the electronic automated mode allows the pump to check for water every 2 1/2 minutes. If water is detected, the pump stays on until the water is removed. If no water is detected, then the pump turns off.