Maytronics Impeller with Screw, Black, For Use With Dolphin Deluxe 5, Dx6, Deluxe 4, M400, M500, Nautilus, Triton, Edge, Discovery, Wave 75, Liberty, Prowler 820/830, Premier, Quest, Wave 65, Wave 90, Active 10, Active 20, Active 30, Active 30i, Prowler 910, Prowler 920, Prowler 930, Echo, Discovery, Premium, Saturn, Cayman, Quantum, E10, Escape, Nautilus CC, Triton PS, Triton PS Plus, Encore, S50, S200, S300, S300i, M200, Nautilus CC Plus, M400, M500, Triton Plus, Oasis Z5 Robotic Pool Cleaners