Features With BioBlastPlus Odor Control Technology; Biological Enzyme/Bacterial Formula That Performs In All Temperature Conditions; Accepted At All Campgrounds And Enhances Septic Tanks; Keeps Tanks Clean With A Fresh Clean Scent; Weight – 1.1; Bio/Chemical Type – Biological; Scent – Fresh Clean Scent; Tank Size – 40 gal.; Unit Volume – 16 oz. Bottle; .