Waste Holding Tank Treatment; TST ™; Chemical Treatment Used To Break Down Waste and Tissue; Without Formaldehyde; With Deodorant; Original Scent; Treats 40 Gallon Holding Tank; Drop-INS ™ Individual Dose Pouches; Bag of 15 Treatments

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 Features & Benefits Handy And Convenient Individual Dose Pouches Come In An Easy-To-Use Resealable Bag One Pouch Treats An Entire Tank Dissolves Instantly, Eliminates Odors On Contact Stops Odors Up To 7 Days No Harmful Formaldehyde 100 Percent Biodegradable