HEPA Filter Assembly including C-vac's 7281P3 HEPA Filter, 7281F2 Poly Prefilter, 7281SS Spacer Sleeve, and 7281DB Dacron Bag.Manufactured by C-vac to fit Pullman-Holt 102 ASB, 720 ASB and 55 ASB series vacuums or other vacuums using the B160009 or B700030.