Speed Begins With A Solas Impeller - Designed for speed, handling, and durability, all Solas impellers are made of an ultra high strength stainless steel with one-piece molding to achieve a consistent pitch. Recognized worldwide, Solas offers you a choice of innovative designs. The new Concord impellers feature a radial blade design. Built to enhance all-around performance, the Concord will maintain top-end speeds, while increasing low-end power for towing or carrying more passengers. Also improves blast-off power and allows better hook-up in choppy water. For use with Kawasaki 1100 ZXi, STX.