Replacement Pre-filter for Dyson DC40 Vacuum Cleaner Fits the following Vacuum models: Dyson DC40 Animal Dyson DC40 Exclusive Dyson DC40 Multi Floor Dyson DC40 Multi Floor Exclusive Dyson DC40 Origin Exclusive Dyson DC40 Total Clean Compatible with the following part numbers: Dyson Part No.923587-02 10-2339-06 Extra lifetime filter to replace your filter while it's being washed. Filters should be washed at least once every six months. - This part is a top quality, generic aftermarket replacement part. Fit and function are guaranteed for 30 days or your money back, 1 year warranty against defects. - Any reference to brand or model numbers is intended for identification purposes only. - This product does not include any warranty from the manufacturer.