Water-soluble concentrated formula contains high levels of fragrance, surfactant and bacteria for 24-hour odor control. Billions of select sporeform bacteria completely eliminate odors at their source by digesting odorcausing molecules. Can be used in trigger sprayers, mop water, carpet extractors and drains. Biodegradable surfactant. Low VOC (per CARB and OTC). Gallon bottle. 4 bottles per case