This Maytronics 9991414-R1 Cartridge Filter and Bottom Lid Conversion Kit for use with Dolphin Deluxe 4, Deluxe 5, DX6, Discovery, Edge, Wave 75, Triton, Prowler 820, Prowler 830, Premier, Quest is a reliable replacement part, designed to seamlessly intergrate with the original pool cleaning system. The full kit provides security and 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.