Rhino RV Holding Tank Treatment features a Bacteria/Enzyme formula to digest waste and break down tissue for easy biodegradation. The natural formulation digests waste, tissue, fats and proteins and activates only in the presence of material requiring digestion. Unlike most enzyme treatments, this new chemistry provides a stable product with a long shelf life that is not temperature sensitive. Also contains a buffering agent to prevent acid formation and septic odors. This product harnesses the natural process by which nature digests waste. All components are environmentally friendly and biodegradable. Features a fresh pine scent. 1 drop in treats 40 gallons.