Dolphin Sigma Robotic Pool Cleaner - Refurbished

Full 3 Year Warranty. Authorized Dealer Exclusive. 3 Year Warranty (even on Open Box & Refurbished units) starts on day of delivery! Easy way to save hundreds! Comes with all original parts, accessories, and is in full working order! Each unit is inspected using Maytronics software and fully tested. On-board Gyroscope. In a revolutionary feat, engineers at Maytronics gave the Sigma a gyroscope to enable the robot to clean & navigate your pool with optimal efficiency.  Hassle-free clean. Easy-to-use, robotic pool cleaner equipped with an anti-tangling swivel cable, allowing Sigma to move freely around large residential pools up to 50 feet with ease. Backed by a 3 year quality assurance. No messy bags to clean. Massive top-loading cartridge filters captures and traps fine and ultra-fine debris for an optimal clean swimming pool. Powerful, dual scrubbing brushes thoroughly and efficiently attacks tough contaminants removing algae and bacteria from floor, walls and waterline fo