The Black Motor Unit is for use with Dolphin Robotic Pool Cleaners. Dolphin™ Robotic Pool Cleaners are the most advanced robotic pool cleaners, here to deliver a whole new level of pool cleaning performance. Replacement motor fits the S200, S300, S300i, Active 20, Active 30, Active 30i, T35, T45, T55i, Triton PS Plus, Proteus 920 , Proteus 930, Discovery, Premium, Quantum, Mercury, Prowler 920, Prowler 930, Warrior SE, and Warrior SI Cleaners.

New Maytronics Part #  99953058-EX Motor Unit for S200 S300 S300I