Yweller Replacement Cartridge Filter Fit for Shop-Vac 90304 90350 90333 9030400 Most Wet/Dry Vacuum Cleaners, Type U,5 Gallon and Above, 1 filters+1 pre filters+1 cap : Amazon.ca: Tools & Home Improvement
Housmile Replacement Cartridge Filter Compatible with Shop-Vac 90304 90350 90333 Fits Most Wet/Dry Vacuum Cleaners 5 Gallon and Above
Nispira Nanofiber Filter + Lid for Shop-Vac 90350 90304 90344 Wet Dry Vac 3 Pk | eBay
HQRP Cartridge Filter Compatible with Shop-vac 90304 (Type U) Replacement fits Full Size Vacs, 903-04-00 903-04 for Most Wet/Dry Vacuum Plus HQRP Coaster : Amazon.ca: Tools & Home Improvement