ERC Diesel Particulate Filter Cleaner Concentrate efficiently and cost-effectively resolves soot buildup in diesel particulate filters quickly over short distances, eliminating the need for frequent filter changes. Using the ERC pressure spray gun made of stainless steel (see accessories), this diesel particulate filter cleaner concentrate is sprayed directly onto the pressure or temperature sensor of the particulate filter. This dissolves residues such as soot, ash, and other debris. Subsequent cleaning requires only ERC diesel particulate filter washing (see accessories). Dosage: Enough for up to 3 applications (adding approximately one-third of the diesel particulate filter volume is sufficient). Packaging: Bottle. Contents: 1 liter