Valterra V23003 'Pure Power Blue' Waste Digester and Odor Eliminator

Waste Holding Tank Treatment; Pure Power; Blue; Biological Treatment Used To Break Down Waste and Tissue; Without Formaldehyde; Fresh Clean Scent; Without Lubricant; Treats 40 Gallon Black or Gray Water Holding Tank; Use 2 Ounces Per 40 Gallons; 1/2 Gallon Bottle