Drop and go. Easy to use, single button plug and play in-ground robotic pool cleaner ideal for pools up to 50 feet; backed by a 3 year quality assurance. CleverClean delivers a smart and efficient clean using advanced algorithms for complete pool coverage. Anti-tangle patented swivel cable allows your Dolphin to move around your pool with ease. Powerful, dual scrubbing brushes forcefully attack tough dirt and debris leaving your swimming pool floor, walls and waterline exceptionally clean in 3 hours. Multiple filter options for an optimal clean pool. The Premier comes standard with three filter options: bottom-load fine cartridge filters, ultra-fine cartridge filters, and an oversized fine filter bag. Cleaning made convenient. Set the Premier's weekly scheduler to automatically clean for you- every day, every other day, or every 3rd day. The full filter indicator lets you know when it's time to clean your filter.