The Black Pearl Robotic Pool Cleaner is a high quality in-ground robotic cleaner for all swimming pool surfaces. This cleaner will scrub and vacuum your pool floor, walls, and waterline, leaving your pool sparking clean in two hours and also operates effectively in large above ground swimming pools. The integrated floating swivel cable insures that this robot operates flawlessly with the least amount of maintenance. It also comes with the largest-in-class debris cartridge, and includes an extra-fine filter insert to scrub water to sparkling clarity. The cleaner comes with a 52-ft heavy duty cord with Swivel allowing the cleaner to work in pools up to 21 x 43 in size. Focus flow technology makes for a speedy cleaning for any pool.