Don’t Miss Out On & Off Hull & Bottom Cleaner, 32 ounce

32 ounce MaryKate On & Off Hull & Bottom Cleaner instantly eliminates tough waterline, algae, rust and exhaust stains. Safe of gel coat – use on fiberglass only. 

• Fast-Acting Formula – Instantly removes tough waterline, algae, rust, and exhaust stains
• Safe for Gel Coat – Specially formulated for use on fiberglass without damaging the gel coat
• Easy Application – Simply brush it on and rinse it off—no heavy scrubbing required
• Water-Based & Non-Flammable – Safer to use and environmentally friendly
• For Fiberglass Use Only – Designed specifically for fiberglass surfaces above and below the waterline
• Replaces CRC MK2032