SEPTIC TANK SYSTEM TREATMENT (2yr Supply - 1500gal tank; HIGHLY CONCENTRATED). No Mess Flushable Packets (RiMAX BIO SEPTIC TREET) Metabolizes Septic & Dran Sludge No Harsh Chemicals, Solvents or Acids Aerobic and Anaerobic Systems 24 Month Maintenance Supply for up to 1500 gallon Septic Tank System One of the Most Concentrated on the Market. Billioins of Beneficial Bacteria in Each Packet.