RIDGID Fine Dust Pleated Paper Wet/Dry Vac Replacement Cartridge Filter for Most 3 to 4.5 Gallon RIDGID Shop Vacuums (1-Pack) VF3500 - The Home Depot
RIDGID 4 Gallon 6.0 Peak HP Wet/Dry Shop Vacuum with Detachable Blower, Fine Dust Filter, Two Dust Bags, Hose, and Accessories WD4080B - The Home Depot
RIDGID General Debris Pleated Paper Wet/Dry Vac Replacement Cartridge Filter for Most 3 to 4.5 Gal RIDGID Shop Vacuums (1-Pack) VF3400 - The Home Depot
Shop-Vac Reusable Large Dry Shop Vacuum Cartridge Filter at Lowes.com
Craftsman Wet Dry Vac Filter Replacement
WORKSHOP Wet/Dry Vacs Vacuum Filters WS21200F2 Standard Wet/Dry Vacuum Filters (2-Pack - Shop Vacuum Filters) For WORKSHOP 5-Gallon To 16-Gallon Shop Vacuum Cleaners - Amazon.com