Take the guesswork out of tank maintenance with Valterra Odorlos Holding Tank Treatment in a convenient 68 oz self-measuring bottle. Safe for RV, marine, and septic systems, it is biodegradable, non-toxic, and free of formaldehyde. This nitrate-based formula accelerates the natural breakdown of waste and toilet paper while stopping odor-causing gases before they start. The built-in measuring chamber lets you pour the exact amount needed every time, reducing waste and making application quick. Designed to perform in both hot and cold conditions, it also helps lubricate valves for smoother operation. Features:• Self-measuring design ensures mess-free dosing• Promotes efficient waste breakdown for improved tank performance• Helps eliminate odors at the source for a fresher system• Eco-friendly formula supports safe and responsible use• Lubricates valves to maintain smooth operation• Reliable performance across a wide temperature rangeSpecs:• Brand: Valterra• Model Number: V77003EN• Product Type: Holding Tank Treatment• Size: 68 oz self-measuring bottle• Formula Type: Nitrate-based, scent-free• Usage Ratio: 4 oz per 40 gallons (1 oz per 10 gallons)• Compatibility: RV, marine, and septic systems• Safety: Biodegradable, non-toxic, formaldehyde-free• Application: Black and grey water tanksNote: Replacing V77003 Odor eliminating formula 68 oz large size Self measuring bottle | Odorlos Holding Tank Treatment, 68 oz in Black