Product Information:Hepa Filter Eureka Dcf-21 (Dcf21) Hepa Vacuum Cleaner Replacement Filter. 1 Pc. | | Dcf-21 Vacuum Filter Compatibility: Compatible With Dcf-21 And Eureka As1000, As1040, As1061A, 3270, 3272Av, 3280, 4230, 4240, 8810, 8860, And 8870 Series Upright Hoovers Replacement Part # 67821, 68931, 68931A, Ef91, Dcf-21 | | Dcf-21 Filter Dimensions: Each Filter Is 5.8 Inches Long, 3.9 Inches Wide, And 0.6 Inches Thick. | | Quality Dcf21 Filter Parts Vacuum Filters: Our Filters Are Made Of High Quality Materials, Durable, Reusable And Easy To Clean, It Is Recommended That You Change Your Eureka Airspeed Filters Every 3 Months For Optimal Performance. | | Easy To Change: The Vacuum Filter Is Very Easy To Change, The Whole Process Even Only Takes A Few Minutes, Which Greatly Saves Your Time And Energy, After Replacing It, The Hoover Runs Much Better And The Suction Power Is Greatly Increased! | | Satisfied After-Sales Service: If You Have Any Questions About Our Dcf-2.