This Maytronics 5581411 Grey Drive Belt T10-500 for Dolphin™ Wave 200 XL, Wave 140, C7 is a reliable replacement part, designed to seamlessly intergrate with the original pool cleaning system. The drive belt is important for internal operation within the cleaner. 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.