Harness the power of citrus to stop odors and break down waste in your RV or marine waste holding tank. Ultra-concentrated formula - just 2 oz treats a 40-gallon tank. Gallon.

 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