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Marykate, On & Off Gel, Hull & Bottom Cleaner, Quart (32 oz.)
Use MaryKate's On & Off Gel, Hull & Bottom Cleaner in the convenient quart size to remove grease, oil, scum and rust from your boat's hull. The unique viscous formula clings to the hull surface to clean the surface and the blue-green color lets you see where it has been applied.