Shurflo Aqua King II Supreme 5.0 Fresh Water Pump The Shurflo Aqua King II Supreme Fresh Water Pump is designed for boats with multi-fixtures, providing just like home pressure. A built-in mechanical bypass function enables this pump to operate at lower flow conditions with minimal cycling. Features a heavy-duty, seamless shell and electro-coated motor to withstand the tough marine environment. O-ring sealed end bells and completely sealed wired entries ensure a long running life. The Aqua King