Mountain Air 620 (RC-48 activated virgin carbon) 326 CFM 6" Carbon Filter

4" Hanging Inline Refillable Charcoal Air Filter Square

The Original Can-Filters - Charcoal Air Filter - Sizes Available

Can-Filters - Active Can-Lite Charcoal Air Filter - Sizes Available

Vortex - Pro-Lite Charcoal Air Filter - 8"x24"

Stealth Filtration - Charcoal Air Filter - Sizes Available

6" Inline Charcoal Air Filter

4" Inline Charcoal Air Filter

Mountain Air Carbon Filters - 436 CFM (8" Flange x 40" Height)

Mountain Air Carbon Filters - 195 CFM (4" Flange x 16" Height)

Mountain Air Carbon Filters - 326 CFM (6" Flange x 20" Height)