Solas SRZ-CD-14/19A Concord Sea Doo impeller has unique balanced blade design that delivers remarkable thrust take off, improves acceleration  and top speed 2+mph. Solas SRZ-CD-14/19 impeller is great for pulling skiers to racing. Solas This upgrade over stock Impeller Fits Sea Doo RXP 215 09-11, Sea Doo GTR 215 impeller, 2012-up, For stock to stage 1/2/3 kit