Pure Power Blue is a biological formula with odor control technology that performs without fail in all temperature conditions. This high-powered mixture of enzyme-producing bacteria is sure to keep your holding tanks clean and odor-free. Put the power of this revolutionary new formula to work for you, and see what a difference it makes. This chemical-free, CA-compliant solution is accepted at all campgrounds, RV parks, and RV/Marine dump stations. Safe to use in all septic systems. Will not harm children or pets. Leaves behind a fresh and clean scent. Requires only 2 oz. per 40-gallon tank. Gallon. Accepted at all campgrounds & RV parks Leaves behind a fresh & clean scent | Valterra Pure Power Blue Waste Digester and Odor Eliminator - 128 Oz