A highly effective fluid used for cleaning soot clogged DPF units without disassembly. Dissolves contaminants inside DPF units, restores vehicle performance and fuel consumption. Regular use help prevent expensive repairs. Always use in combination with Pro-Line Diesel Particulate Filter Cleaner (part no. 20110). To apply use DPF Pressurized Tank Spray Gun (part no.7946), DPF-Probe with 5 interchangeable tips (part no. 7945) and if needed DPF Spray Probe long (part no.