Amazon.com: Replacement Filter for Shop Vac Models 90304, 90350, 90333 - Wet/Dry High Absorption and Long-Lasting Paper Sieve for Shop Vac Filters - Disposable Filter that Fits Most Vacuums, 5 Gallon and
THINK CRUCIAL Replacement Filter Cartridge & Foam Filter, Fits Shop-Vac Wet & Dry Vacs, Compatible with Part 90304,90585-00 & 9058562 90304 - The Home Depot
Shop-Vac® HEPA Cartridge Filter | Shop-Vac Store
Shop-Vac High Performance 90398 Cartridge Filter, Fits Most 4 Gallon and less Shop-Vac Wet/Dry Vacuums, High Efficiency Nanofiber Filtration Paper, PET and Reusable, 2 Pack - Amazon.com