VF3500 Replacement Filter for Rigid Vacuums for Shop Vac Filters 3-4.5 Gallon Fine Dust Vacuum Filters for Rigid WD3050, WD4070, WD4080, WD4522, 4000RV, 4500RV : Amazon.ca: Home
RIDGID HEPA Material Pleated Paper Wet/Dry Vac Replacement Cartridge Filter for Most 3 to 4.5 Gal RIDGID Shop Vacuums (8-Pack) VF3600B - The Home Depot