Maytronics Robotic Pool Cleaner Replacement Retrofit For Cable Connector -3pin.  Used with most ASSY cables. Manufacturer Part # 9991279 Fits the Following Cleaners: Dolphin Nautilus Dolphin Triton Dolphin Advantage Dolphin Dx3 Dolphin Dx4 Dolphin Dx5 Plus Dolphin Deluxe Cl1 Dolphin Deluxe 5 Dolphin Deluxe 4 Dolphin Deluxe 3 Dolphin Endeavor Dolphin Atlantis Basic Dolphin Discovery Pentair Prowler 820 Pentair Prowler 830 Spectra Light Premier Cb Spectralight Quest Cb