• This DPF/Catalyst Cleaner is usable for all closed particulate filter systems.• It is designed to dissolve and remove all contamination and soot residues from the diesel particulate filter and the catalyst.• The removal of the DPF is not required. It is also ideal for EGR cleaning and evaporates residue-free.• Contains 400ml, sufficient for one application.This DPF/Catalyst Cleaner is usable for all closed particulate filter systems. It is designed to dissolve and remove all contamination and soot residues from the diesel particulate filter and the catalyst. The removal of the DPF is not required. It is also ideal for EGR cleaning and evaporates residue-free. Sufficient for one application.• This DPF/Catalyst Cleaner is usable for all closed particulate filter systems. • It is designed to dissolve and remove all contamination and soot residues from the diesel particulate filter and the catalyst. • The removal of the DPF is not required. It is also ideal for EGR cleaning and evaporate