Amazon.com: Shop-Vac 4 Gallon 5.5 Peak HP Wet/Dry Utility Vacuum with SVX2 Motor Technology, 3 in 1 Function Portable Shop Vacuum with Cart, Attachments, 5914000 : Industrial & Scientific
90398 Type AA cartridge filter fits for Shop-Vac 5 Gallon Wet/Dry Vacuum 5HM400 | eBay