Features: * Begin using TST today, no need to clean other products out of holding tank first * Freshen, clean and lubricate your holding tanks-both gray and black water systems * 100% biodegradable and safe for the environment * Coconut oil soap cleanses the system with an agitation action, and lubricates valves and seals to prolong equipment life while it prevents sending units from misreading * Toilet chemical * Coconut oil lubrication keeps waste off the walls * For use in RVs and boats, and safe for septic tanks * Does not contain poisonous formaldehyde or blue staining dye * Fresh clean fragrance What"s In The Box: * Camco 40227 RV TST Holding Tank Treatment - 1 Gallon