Dirt Devil Style F48 Canister Vacuum Filter, 304023001 Genuine OEM Dirt Devil Style F48 Quick Power Canister Vacuum Cleaner HEPA Filter Fits Quick Power Canister Models SD40025, SD40025RM Recommended to be replaced once every 6 months for peak perforamance Use Only Genuine OEM Dirt Devil Filters During The First 2 Years To Keep Your Warranty Intact Dirt Devil Part Number 304023001