Valterra V77004 Odorlos 168oz Waste Tank Treatment

Odorlos is an industrial strength, environmental award winner so effective that 4 ounces eliminates all holding tank odors without masking perfumes or staining dyes.

Breaks down waste and tissue, lubricates valves, safe for any septic tank system, safe for chemically sensitive people and safe for plastic or porcelain toilets and all holding tank systems. Contains no formaldehyde and works by speeding up the natural composting process by preventing hydrogen sulfide gases. 4 oz./40 gal. tank.