AquaMaxA(R) Holding Tank Treatment - 1 Gallon - Spring Shower Scent AquaMaxA(R) 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 a one-gallon jug, 64-oz. bottle, 32-oz. bottle, and 6 pack of 8-oz. bottles Easy dosing system: 8-oz of AquaMAXA(R) 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-InsA(R) This product may not be returned to the original point of purchase. Please contact the manufacturer directly with any issues or concerns.