The SHURFLO Bait Sentry's magnetically driven impeller moves large quantities of water and handles solid debris without motor damage. If the impeller locks up, magnets break free, saving the motor from burnout. This pump design also features an automatic purge which protects against airlock. A second 1/2" inlet port provides a raw water connection to a wash-down pump. 24-hour dry run time. Type: Bait tank pump Inlets/Outlets: 3/4" NPT inlet, 3/4" Barb outlet (1100 GPH model has 1-1/8" barbed outlet) Mount: Mounts on 3/4" seacock Features: Includes dual port for easy washdown connections, continuous duty, ignition protected, Marine UL Listed Warranty: Three years