Anti-airlock feature allows the pump to clear trapped air in rough water or when the boat is anchored. The dual port fitting allows for easy washdown pump connections. Everything you are looking for in a livewell pump!
I keep one of these running for several days on end some times and have never had a problem. However, I do change it out at the start of each fishing season because of it's importance. Very low amperage draw for the good amount of water flow it produces. I am satisfied using these pumps.