The Odorlos Liquid Holding Tank Treatment is an industrial strength, environmentally friendly toilet chemical so effective that it only takes 4 ounces to eliminate all holding tank odors, liquefy waste and tissue, and lubricate valves.

– Safe and effective in all RV and marine black, grey, and recirculating tanks.
– Works in plastic and porcelain toilets.
– Septic safe.
– 4 oz treats a 40-gallon tank.
– 1 oz works for every 10 gallons of holding tank capacity.
– For portable toilets – use 2 oz.
– For longer holding periods, larger tanks, or temperatures above 85-degrees, use an extra 2-4 oz as needed.
– Integrated measuring bottle for accurate pouring.
– 1 gallon of water is required in your holding tanks for treatment.
– For portable toilets – add 1-2 quarts of water.
– Cleans your tank sensors for more accurate readings.
– Works even in extreme temperatures and all weather conditions.
– Speeds up the natural composting process by preventing hydrogen sulfide gases.
– Can be safely disposed of at any proper waste station.
– Non-staining and non-corrosive.
– Scent-free, no harsh chemical smell.
– Accepted by all campgrounds.
– 100% biodegradable, non-toxic.
– Do not store in freezing temperatures or below (32-degrees F / 0-degrees C).
– Formaldehyde-free.
– Unlimited shelf life.
– Sold as a 168 oz jug.
– Weight: 10.5 lbs.
– Made in the USA.