Keep your RV holding tanks clean with Valterra Odorlos Holding Tank Treatment in a convenient self-measuring bottle. This nitrate-powered formula works by accelerating the natural breakdown of waste and toilet paper while preventing odor-causing gases from forming. The built-in measuring design lets you pour the exact amount needed without spills or waste, making routine tank maintenance easier and more precise. Safe for RV, marine, and septic systems. Reliable in all temperatures, it also helps lubricate valves for smoother operation and longer system life. Features:• Self-measuring bottle allows precise dosing• Promotes natural waste breakdown for improved tank performance• Helps eliminate odors before they start• Eco-friendly formula supports safe system use and disposal• Lubricates valves to maintain smoother operation• Performs effectively in both hot and cold environmentsSpecs:• Brand: Valterra• Model Number: V77002EN• Size: 40 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 V77002 Odor eliminating formula Breaks down waste fast Self measuring bottle | Valterra Odorlos Holding Tank Treatment, 40 oz in Black