Camco Tst Rv Toilet Treatment -
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. Eliminates odors and lubricates sensors. 100% biodegradable and environmentally safe. Original formula takes only 4 ounces to treat an entire 40-gallon tank in any season.
Trusted by campers for 40 years, TST stops odor and lubricates sensors without staining your septic tank. Contains no formaldehyde and is 100% biodegradable.