The Maytronics Dolphin Ultra Fine Filter Kit (Item 9991466-R4) is specifically designed to to fit the following Pool Cleaners: Dolphin S50, Dolphin Active 10, Dolphin Prowler 910, Dolphin Echo, Dolphin Saturn, Dolphin Cayman, Dolphin E10, Dolphin Escape, Dolphin Encore, Dolphin Nautilus with Clever Clean
