The Hayward AquaNaut 400 Automatic Suction Pool Cleaner, W3PHS41CST, is a reliable and efficient cleaning solution for your pool. With its advanced technology and robust design, it effectively removes dirt, debris, and leaves from your pool's surface and walls. The V-Flex technology ensures maximum power and suction, allowing it to navigate obstacles and maintain consistent performance. The adjustable roller skirt provides optimal suction on uneven surfaces, while the patented self-adjusting turbine vanes optimize flow and prevent clogs. The AquaNaut 400 is suitable for various pool surfaces and shapes, making it a versatile and convenient choice for pool owners.