Solas SRX-CD-13/18 Concord Sea Doo impeller has unique blade design that delivers remarkable thrust take off, improves acceleration and top speed 2+mph. Solas SRX-CD-13/18 Sea Doo impeller is great for pulling skiers to racing... Solas This upgrade over stock Sea Doo impeller Fits Fits RXT 215 HP 05-08, GTX LTD SC 215 05-08, GTX 05-08, GTX Wake 07-10, Wake SC 215 07-up, fits 159mm pump