Shurhold Yacht Brite YBP-0306 Serious Marine Cleaner Concentrate- 1 Gallon Multipurpose, multisurface cleaner Surfaces: Fiberglass, Vinyl, Carpet, Rubber, Teak, Acrylic, Canvas Purposes: black streaks, vinyl seating, exhaust stains, bilges, carpet stains, wheel and rims, fish blood and more No need to use numerous cleaners 1 gallon concentrate makes 4 gallons of cleaner