RIDGID HEPA Material Pleated Paper Wet/Dry Vac Replacement Cartridge Filter for Most 3 to 4.5 Gal RIDGID Shop Vacuums (4-Pack) VF3600A - The Home Depot
RIDGID HEPA Material Pleated Paper Wet/Dry Vac Cartridge Filter for Most 5 Gallon and Larger RIDGID Shop Vacuums (1-Pack) VF6000 - The Home Depot