Thetford EcoSmart FF Deod 36 Oz 32949 [VERSATILITY]: Eco Smart is a powerful RV and marine waste holding tank deodorant that will work year-round to eliminate odors [PERFORMANCE]: Strong formula, breaks down and liquefies waste and tissue, ensuring a no clogging experience [CONVENIENCE]: Measuring and pouring is easily done with the help of Integrated holding chamber, eliminating messy spills [SAFETY]: Made from biodegradable ingredients, Eco Smart is a formaldehyde-free liquid in a child-resistant bottle [FUNCTIONALITY]: The 3-in-1 formula contains a powerful waste liquefier for breaking down waste, a deodorant for eliminating bad odors, and a detergent for cleaning the tank walls and the drain lines