Features A concentrated bacterial waste degrading product designed to clean main sewer pipes of fats, grease, sludge, and paper without the use of harsh, aggressive and dangerous chemicals Should be used in every household, whether on a septic system or city sewers One bottle, twice a year, will keep the main line free of unwanted build-up and prevent back ups during heavy water use Should also be used in the new "low flow" water-saver toilets to maintain a clear sewer pipe Specifications Size: 32 oz