Designed for Dolphin models with on/off switches and weekly timers, this 180W Replacement Power Supply is compatible with Nautilus Pool Up, Atlantis, DX3, DX3S, Endeavor, M3, Nautilus (old), Nautilus CC Plus (old), Neptune, Primal, and Quest. It's a Maytronics Certified Genuine Part, essential for keeping your Dolphin pool cleaner performing efficiently.