Odor Away Holding Tank Treatment - Nitrate Formula - 64 ozEliminates holding tank odors using nitrates to rapidly break down organic waste. Designed for RVs, boats, and portable toilets with limited ventilation. The formaldehyde-free formula transforms hydrogen sulfide gas into nitrogen for a more pleasant environment.Features: ODOR CONTROL NITRATE FORMULA - STAR BRITEs nitrate-based solution helps reduce odors and supports the breakdown of waste in holding tanks and portable toilets. RAPID WASTE BREAKDOWN - Accelerates the natural decomposition process, ideal for efficient waste management in low-ventilation systems. FORMALDEHYDE-FREE AND FRAGRANCE-FREE - This formula contains no formaldehyde or added fragrances. Use with care, as it may cause skin and eye irritation. VERSATILE AND EFFICIENT - Suitable for all tank sizes, from portable toilets to large RV tanks, ensuring optimal performance and ease of use in any setting. USER-FRIENDLY APPLICATION - Simple, straightforward directions for use in holding tanks and portable toilets, ensuring hassle-free maintenance during travels. TRUSTED BRAND - STAR BRITE is a trusted name in marine and RV maintenance products, known for delivering high-quality, effective solutions. EASY TO USE - Simply add the recommended amount to your holding tank, and let the treatment do the workno complicated procedures or tools needed. SUITABLE FOR ALL TANK SYSTEMS - Versatile and compatible with all major RV and marine holding tank systems, making it a reliable choice for any vehicle. Directions:Shake well before use. For holding tanks, add 4 fl. oz. (1/2 cup) of Odor Away per 40 gallons of tank capacity, along with 1 gallon of water. For portable toilets, use 2 fl. oz. (1/4 cup) mixed with 1 to 2 quarts of water. Before use, thoroughly flush tanks to remove any previous treatments. Bottle sizes treat up to 640 gallons. table.productattributes, .productattributes td { border-bottom: 1px solid #ddd; border-collapse: collapse; padding: 2px; text-align: left; } Truck Freight: No Oversized: No