Eight.3 650lb Telescope Floor BallastWeighting the mid portion of your boat is key to maintaining the right distribution for a bigger size wake, and this is the perfect product to do just that. Features High Velocity Fillport The Eight. 3 pump has a spring loaded quick connect male adapter, that is designed to easily clamp onto the high velocity fill port. Ever had an unexpected flying water hose in your boat? Not no mo. This 1 1 2 diameter fill port has a check valve water gate and a