Bio - Kleen® Hull Kleen. Commercial strength, environmentally safe.
Fast-acting, fiberglass Hull Cleaner quickly removes waterline, scum, algae, lime, scale, rust, and chalking with very little effort.
Designed as an aggressive, one step, spray-on / spray-off Cleaner that dissolves deposits and gives you the best economy when pulling boats out for storage and detailing. A safe, non-toxic, biodegradable alternative to harsh acids and chemicals. Not only is it effective and non-toxic, but it is aromatic, emitting no harsh fumes or burns. 32 ozs.