This is a multi-purpose cleaner and disinfectant that works above and below deck. Marine Spray Nine kills germs, removes stains and yellowing and eliminates bacterial odors with little effort. Use regularly to control mold and mildew on vinyl, carpets and hard surfaces. Great for use on hulls, fiberglass, galleys, boat covers, jet skis, camping equipment, RV's, trailers, personal watercraft, awnings, coolers, inflatables, life jackets, vinyl and bait buckets.