Zep Odorless Liquid Bacterial Additive is a new and improved biological waste digester that acts to keep drains clear by biologically degrading grease, oil, cellulose, protein, and starch residues. This product`s new low odor formula enables it to work around the clock to maintain drains without the odors normally associated with standard active bacterial drain cleaners. Zep Odorless LBA contains no harsh acids or caustics to damage drains or interfere with the natural bacterial action associated with septic tanks, ponds, and lagoons. The addition of a bacterial culture establishes bacterial colonies that remain in the system, and reactivate each time that waste is introduced. Zep Odorless Liquid Bacterial Additive is a member of the Zep GreenLink line of Environmentally Preferred Products (EPP). Does not contain any butyl solvent or APE surfactants. Uses biological renewable resources, bacteria, which will keep producing for sustainable technology. Approved by the Design for Environment (DfE) program, sponsored by the EPA to promote environmentally preferable cleaning solutions. Contains from 800 billion to 1 trillion colony forming units (CFU) per gallon. Specifications Recommended Room kitchen Count 4 Piece Count 4 Manufacturer Part Number 166823 Multipack Quantity 4 Model 166823 Recommended Surface drain Brand Zep Recommended Location Indoor Specifications Recommended Room kitchen Count 4 Piece Count 4 Manufacturer Part Number 166823 Multipack Quantity 4 Model 166823 Recommended Surface drain Brand Zep Recommended Location Indoor