This AAF Flanders AstroPak Labconco Allentown 3838502 PHANTOM2 Station Upper HEPA Filter is in unused condition and is guaranteed to be fully functional. This item came from a large pharmaceutical company that had surplus new old stock inventory. We urge customers to view all photos as they show overall condition, included accessories and useful information. Please feel free to contact us with any questions. LIST PRICE: $1,324.00 AstroPak High Efficiency Particulate Air (HEPA) Filter Ref P/N: 3838502 Efficiency: 99.999% Resistance: 0.23 IN. W.G. Part No.: 3039682-011 Penetration: 0.001% Test Flow: 441 CFM Date Tested: 5/2/2020 SERIAL NO.: 1160353 Size: 18 X 36 X 5-7/8 CLASSIFIES UL AIR FILTER UNIT AS TO FLAMMABILITY ONLY: CLASS 2 239A