Thetford Aqua Clean Multipurpose Cleaner - $4.88

Nonabrasive cleaner foams and starts cleaning on contact to remove soap scum, rust stains and hard-water stains. Ideal for use on plastic, fiberglass and porcelain surfaces in RVs, on boats and at home. Gentle, effective formula won't scratch finish and is safe for use on seals. 100% biodegradable. 32-oz. trigger spray bottle. - $4.88