For easy, accurate measuring the tub includes a 2 oz scoop. Odorlos dry formula quickly dissolves and works just like the liquid. Just 4 ounces does it all (for a 40 gallon tank): eliminates holding tank odors completely, breaks down waste and tissue, lubricates valves, and prevents clogging. Formaldehyde-free and safe for any septic tank system.

 PROP 65 WARNING: This product may contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Wash hands after handling. For more information, visit www.P65Warnings.ca.gov