Roebic Laboratories K-37 Septic Tank Treatment, 32-Ounce

Contains anaerobic spore-bearing bacteria selected, conditioned and cultured for use in septic tanks. Resistant to soaps and detergents; continually produces enzymes which digest protein, keep tank contents liquid and prevent over-accumulation of organic waste. A single treatment prevents tank clogging and build-up for one full year. One quart treats one 500 gallon capacity tank.