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AquaBio™, a new twist on holding tank treatments, offers today's RVers a Formaldehyde and Bronopal Free formula. Thetford's next generation of holding tank solutions is campground friendly and complies with California regulations. The quick-acting holding tank treatment eliminates odors while digesting waste and toilet paper to prevent clogging, all without any harsh chemicals. Proudly made in the USA, Thetford's New AquaBio™ is formulated and tested safe for all RV toilets, holding tanks and septic systems. Formaldehyde Free/No FormaldehydeBronopal Free/No BronopalOdor Eliminator and Waste DigestorSeptic System SafeCampground FriendlyCalifornia CompliantFresh citrus scent