This Maytronics Dolphin™ 99951713 Outer Casing for Wave 100 for Dolphin™ Wave 100 Cb is a reliable replacement part, designed to seamlessly intergrate with the original pool cleaning system. The outer casing securely protects the internal operations of the pool 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.