Camco 32 oz. TST Holding Tank Chemical. This original formula takes just 4 oz. to treat a 40-gallon tank, effectively eliminating odors and lubricating sensors. Safe for all septic tanks, it ensures a pleasant camping experience.

• 32 oz.
• Original formula that takes only 4 oz. to treat an entire 40 gallon tank in any season.
• Eliminates odors and lubricates sensors.
• Safe for all septic tanks.