Pool Blaster Max works on any surface: concrete, tile, vinyl or fiberglass. The MAX's internal pump makes it a Super Powerful vacuum system, which is free of hoses, external pumps or electrical cords and enables it to operate completely free of any connection to the main filter system. It attaches to any pool pole for extended cleaning or can be used as a hand-held spot cleaner. Extra power for deep cleaning with its Super-High Flow pump located in the machine. The suction lasts longer since the bag holds more dirt and debris, tackling the largest of messes in the pool. The most effective way there is to clean a pool or spa. Easy empty bag so hands do not touch the dirt. Pool Blaster MAX is wall mountable for grab and go convenience.