ON & OFF HULL/BOTTOM CLNR QT

On & Off Hull & Bottom Cleaner by MaryKate is an instant action cleaner designed to remove tough marine stains. For use on fiberglass only.

Features:
• Sizes: Quart and Gallon bottles
• Non-flammable
• Biodegradable
• Removes waterline, algae, rust and exhaust stains
• Will not harm gel coat