I purchased the dual action polisher to specifically clean out the anti skid on my sailboat's deck, cabin top, cockpit, etc. This has got to be the worst cleaning job on a boat (except the head and the bilge). The Dual Action Polisher is ideal for this task. The 20 ft. power cord is great as no power cord extensions were needed. Simply plug into a below deck a/c outlet and run through a deck hatch. Easily done on my 35 ft. sailboat. A well designed power polisher.