Hayward RC9740CUB SharkVac Robotic Pool Vacuum (Automatic Pool Cleaner) Uses smart steering technology that provides an efficient cleaning pattern, scouring pool floors and coves in just about 2 hours Runs separately from the pool's filtration system reducing the frequency of filter backwash cycles; Top-access filter allows quick debris removal and easy cleanup No extra hoses, hookups or pumps required; 2 fine porosity filter elements - just remove and rinse with garden hose, no need to turn cleaner over to empty Top-access cartridge filter allows quick debris removal and easy cleanup SharkVac cleans pool floor only