This ready-to-use formula opens drains, neutralizes odors and enhances naturally occurring bacterial strains to reduce the need for drain line cleaning or grease trap pumping. Effective under extreme conditions, resists hot water temperatures (up to 200°F), chlorinated products, disinfectants, bleach and acidic or alkaline conditions. Multi-strain formulation. No caustics, acids, solvents or free enzymes. Certified free of gram-negative bacteria (i.e. Salmonella and Shigella).