AFE6 Cylone Option- AfterFilter 6. MODEL # AFE6, Indoor Rated Enclosures- Afterfilter 69 X 34, Filter Length 72 Inches, No Filters 6, Total Square Feet filter area 108, 1 Hopper, 10" Standard Discharge. Part No. AFE6 AfterFilter 6. Inquire for pricing Due to Market Volatility.