Pentair 360365 Prowler® 920/930 Motor Unit - The Pentair line of robotic cleaners offers a wide range of features you can select from to perfectly meet your pool cleaning needs, from aboveground pools to large, elaborate inground installations. This is a genuine Pentair OEM replacement part. All models use a powerful high-speed front scrubbing action to clean your entire pool, walls and all. That means each Prowler delivers a truly hands-off cleaning experience.