GVO Marine Electronics: We provide reliable, safe online shopping 24 hours a day, 7 days a week throughout the U.S. and the world. We are strongly committed to providing our customers with top quality merchandise and world class service. Model 89957 AquaMax Holding Tank Treatment - 6-Pack - 8oz Liquid - Spring Shower Scent AquaMax Holding Tank Treatment?s advanced enzyme powered formulas neutralize odors and accelerate waste digestion to prevent clumping, clogging and tank residue, all at the same time. Thetford?s beneficial probiotic treatments are Bronopol and Formaldehyde free. Features: Enzyme-based holding tank treatment Breaks down waste and eliminates offensive odors Bottles with child-resistant caps Available in one-gallon jug, 64-oz. bottle, 32-oz. bottle, and 6 pack of 8-oz. bottles Easy dosing system: 8-oz of AquaMAX treats a 40-gallon holding tank Formaldehyde free Bronopol free Neutralizes odor Breaks down waste to prevent clumping, clogging and tank residue Enzymes optimized for MAX performance Beneficial probiotics; good bacteria Septic system safe Campground and marina friendly Compliant with all current regulations Available as a liquid, dry granule or Toss-Ins GVO Marine Electronics: . Get the item you ordered or get your money back. Covers your purchase price and original shipping.