Meguiar's Marine/RV Heavy Duty Oxidation Remover &ndash; Marine Cleaner to Remove Oxidation &ndash; M4901, 1 gal MARINE CLEANER: Safely removes light to moderate oxidation, water spots, stains and scratches from gel coat, fiberglass and high-tech paint surfaces RESTORE COLOR: Enriched feeder oils restore color while adding and enhancing brilliant shine and gloss. Restores the original color of older fiberglass gel coat surfaces by effectively removing surface degradation UNIQUE FORMULA: Unique diminishing abrasives break down and safely disappear during application, leaving the surface with a brilliant look and shine VERSATILE: Safe and effective by hand or by machine COST-EFFECTIVE: Larger 1 gallon container is more convenient and cost-effective for larger boats and RVs