Higher Flow &mdash optimized impeller to provide up to 10% more flow at the same amperage as previous models with capacities from 500-2000 GPH (1893-7571 LPH)
Auto Sense Intelligence &mdash integral water level sensor controls the pump automatically
Back Up Feature &mdash prevents continuous running if sensor is fouled by debris, pump reverts to 2.5 minute cycle mode
Smaller Footprint &mdash 2/3 the size of previous models (500-1100 GPH models only)
Built-In Thermal Cut-Off (TCO) &mdash provides added protection for pump and vessel
Back Flow Prevention &mdash reduces the amount of water left over in the bilge, reducing odor and helping keep your bilge cleaner (500-1100 GPH models only)
Hidden Air Vents in the Body &mdash helps prevent air locking in challenging plumbing installations and helps with the check valve (500-1100 GPH models only)