Holding Tank Treatment

Control head and holding tank odor with this powerful, 100% biodegradable, formaldehyde-free, chemical treatment. Extra-concentrated, just 4 ounces of Max Control Advanced treats a 40-gallon tank. Easy-to-remove pull-tab inner seal and easy-view level indicators are user-friendly. Select liquid or convenient granulated dry formula offered in convenient three-pack of two ounce pouches.