Solas Brand We offer one style of impeller for this engine the IJK series TB-SC-I (15.5-19.5) The patented Super Camber S-I-J-K-H aeries makes the hub and rubber seal even more streamlined. Resulting, in reduced drag for the impeller while increasing volumetric flow of the pump at the same time, making the SOLAS Super Camber series arguably the best in the PWC market. Click on learn more link below for description of each impeller.