The industry's #1 deodorant eliminates waste odor with fast, effective action. Breaks down waste and toilet tissue. 100% biodegradable. 32 oz. bottle.AquaMax® Holding Tank Treatment’s advanced enzyme powered formulas neutralize odors and accelerate waste digestion to prevent clumping, clogging and tank residue, all at the same time. Thetford’s beneficial probiotic treatments are Bronopol and Formaldehyde free.