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The Rislone DEF Crystal Clean Diesel DEF and SCR Emissions System Cleaner is a specialized treatment designed specifically for heavy-duty and commercial vehicles. This product, with a manufacturer part number of 4784, helps to effectively clean and protect diesel emissions systems, ensuring optimal performance and reducing harmful emissions. With a convenient size of 11.8oz, this cleaner is easy to use and offers a comprehensive solution for maintaining the health of your vehicle's emissions system.

Rislone DEF Crystal Clean (Part # 4784) is a professional-grade, proprietary blend of compatible cleaning agents and surfactant detergents designed to safely dissolve white crystal deposits throughout your vehicle's entire Selective Catalytic Reduction (SCR) system.