Camco TST MAX eliminates odors and breaks down waste in your RV or marine waste holding tank. Just 2 oz. of this ultra-concentrated formula treats up to a 40-gallon tank. This product contains no formaldehyde, is non-staining, and is safe for septic tanks. Ocean scent fragrance. 64 oz.• Eliminates odors and breaks down waste in RV and marine waste holding tanks• Environmentally safe, non-formaldehyde formula• Ultra-concentrated formula• 2 ounces treats up to a 40-gallon tank• Great smelling, fresh ocean scent• 64-oz. bottle 2 oz. treats up to a 40-gal. tank Great smelling, fresh ocean scent 64-oz. bottle | Camco TST MAX, Ocean Scent, 64 Oz