High performance lower foiled rudder blade for your Sea Pearl 21. This easy, drop-in replacement rudder blade, gives instant improvement in steering performance, with much better tacking, reduced weather helm, better pointing ability, and less tiller effort. Your Sea Pearl will seem like a different boat with this balanced rudder that reduces helm effort. The high lift to low drag foil helps your boat to weather and increases speed off the wind. Docking and tacking are easier and crisper, giving you more control of your boat during low-speed maneuvers. Order today and find out why this rudder upgrade is one of our best-reviewed rudders. No modifications to your boat required, just remove old blade, insert new blade, mark the hole location and drill the new rudder's aluminum core and you will begin experiencing a higher performance rudder. A lifetime warranty is extended to the original boat owner.