Odorlos Black Water Drop Ins (V77020) are designed to eliminate unpleasant holding tank odors by providing bacteria with nitrates as an energy source. This innovative formula prevents the production of foul smells by stopping bacteria from targeting sulfates for energy.

• Pre-measured 4 oz. quick-dissolving bags
• Works effectively in RV, marine, and septic tank systems
• Requires only 1 oz. per 10 gallons of tank capacity
• Performs well in extreme temperature conditions
• Speeds up tissue and waste breakdown to avoid clogs
• Eco-friendly, scent-free, and free from formaldehyde and toxins
• 10 pack for long-lasting use