The 8Streme Thresher Pool Cleaner is a high quality robotic cleaner for above ground swimming pools up to 27′ Round and 21’x43′ Oval. This robotic pool cleaner features Focus Flow and Extend Clean Technology which accelerates water flow and extends the cleaners suction zone for faster cleaning. The integrated patented swivel cable technology reduces cord tangling and includes a built-in diagnostic system to assist with diagnostic malfunctions. It also includes a fine filter insert to enhance water clarity.