A fresh, green way to kill odors in your head compartment and holding tank without harmful chemicals. Just pour 1 oz. in head and flush with 1 or 2 quarts of fresh or salt water. Economical ? 1 bottle of ReFresh Marine Head Tank Deodorizer fully treats your holding tank 16 TIMES (20 Ga / 75 L.)

• Non-Toxic-Naturally Green-Water Based-Biodegradable
• 1 oz. per 20 gallons kills odors without chemicals up to 4 months
• Not a cover-up fragrance
• Safe for either Marelon^® or bronze plumbing systems
• Starts working immediately on liquids and solids
• Replace after tank discharge
• Size: 16 oz.