Thanks to the patented HydroRobotic Technology, the Aqua Products AJET121I Aquabot Pool Rover S2-40 Above Ground Robotic Pool Cleaner propels through the water to automatically brush, vacuum and micro-filter dirt, debris, and contaminants. The S2-40i is equipped with two Top Access Filter Bags for easy cleaning and replacing, and an ergonomic handle for ease of use when pulling the cleaner out of the water.