Otis Technology Suppressor Cleaning Fluid Concentrate (16 oz) this biodegradable formula is non-toxic, non-flammable and non-hazardous. The solution helps remove most carbon fouling and build up from suppressors with a quick and easy cleaning process - soak, scrub, rinse, dry, lubricate. Use a 1:1 ratio of Suppressor Cleaning Fluid concentrate to warm/hot water is recommended and creates 32 oz of cleaning fluid