Roto-Rooter® Septic Treatment. Natural enzyme. Monthly 8 doses. Helps prevent septic back-up. Satisfaction guaranteed or it's free*. *Money back upon proof of purchase. Roto-Rooter® natural enzyme septic treatment has been scientifically formulated to help prevent septic backup. New, more concentrated formula has dual acting patented enzymes and natural bacteria to eliminate more paper, fats, oils, grease, protein and starch than before. Helps eliminate unpleasant odors & dampness in leach fields. Use monthly to avoid costly and messy backups. Safe and easy on all pipes. Contains no phosphorus. Used under license from Roto-Rooter Corporation. Roto-Rooter® is a trademark of Roto-Rooter Corporation. Purchaser is not authorized to use Roto-Rooter trademarks. Call 1.888.334.4890 for details, questions or comments about this product. 800-GET-ROTO. rotorooter.com.