This Camco TST (TM) Waste Holding Tank Treatment with pine scent deodorant treats 40 gallon holding tank. It comes in Drop-INS(TM) individual does pouches and is sold in set of 10.

For over 40 years RVers have trusted the odor-stopping power of TST™. The name TST™ still guarantees the highest quality in sanitation treatments that contain no formaldehyde, are non-staining and are safe for septic tanks. 100 Percent biodegradable and environmentally safe Specially Blended Enzyme Formulation Digests Waste And TissueHelps Suspend Waste And Reduce Potential System ClogsTakes Only 4 Ounce To Treat An Entire 40 Gallon Tank In Any SeasonCleans Holding Tank Surfaces And ProbesSafe For All Septic Tanks

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