Vacmaster Professional 8 Gallon Certified HEPA Filtration Wet/Dry Vac
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
HEPA Filters - Lee Valley Tools
RIDGID 5-Layer HEPA Pleated Paper Vacuum Filter for 18.9L (5 Gal. +) RIDGID Wet/Dry Shop V... | The Home Depot Canada