Hayward W3PHS41CST - AquaNaut 400 Pool CleanerThe Hayward AquaNaut 400 is a 4 wheel drive automatic pool cleaner that will efficiently clean larger pools up to 20 feet by 40 feet in size. This suction pool cleaner is the only 4 wheel drive, all terrain, and clog eliminating cleaner on the market to date. The AquaNaut 400 uses a patented V Flex variable vane turbine that allows it to easily suction up larger debris without the worry of getting clogged. This cleaner will help clean surfaces such as