This Maytronics Dolphin™ 9980320 Yellow Wave Wheel Cover for Dolphin™ Wave 300, Wave 200 XL, and Wave 140 is a reliable replacement part, designed to seamlessly intergrate with the original pool cleaning system. This wheel cover protects the wheel assembly, and proper pool cleaner operation. Maytronics pool cleaners help keep your pool healthy and clean, which is of the utmost importance. Ensure that your pool cleaner is running as cleanly as possible with this certified genuine part.