Max Control Holding Tank Deodorant - 1 GallonDometic Max Control-Natural Holding Tank Treatment eliminates odors and effectively breaks down waste in your sanitation holding tank without using formaldehyde or bronopol. The fast-acting proprietary enzyme/bacteria formula enhances beneficial bacteria and will continue to work and benefit downstream systems like septic or municipal treatment facilities. A light appealing fragrance means Max Control-Natural works for portable and gravity toilets and can be used in black or gray water tanks. California-compliant and approved for use throughout North America. Use 4 oz. liquid, per 40-gallon black or gray water tank treatment.Features: It contains a highly effective odor-controlling bacteria-based technology Enzymes break down waste solids to maintain a clog-free environment It has a light, appealing fragrance for open system applications (portables and gravity toilets) Helps keep tank sensors clean and unobstructed Works in black or gray water tanks Less packaging material per dose than most competitors&&';; enzyme products No formaldehyde or bronopol Concentrated formula - 1 pouch or 4 oz. liquid per 40-gallon black or gray water tank treatment WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.This product may not be returned to the original point of purchase. Please contact the manufacturer directly with any issues or concerns. Specifications: Type: Bilge & Holding Tank Box Dimensions: 4"H x 7"W x 12"L WT: 8.6 lbs UPC: 713814344672 Brochure (pdf)