This Maytronics Dolphin S-Series 9983181 Adaptor for Universal Caddy is a reliable replacement part, designed to seamlessly intergrate with the original pool cleaning system. The adaptor adds extra functionality to 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.