Clark Oval Cartridge

Now you can replace the filter elements in your Donaldson® Downflo® Oval dust collector with Clark Filter performance and value. Clark Filter proudly introduces ProTura® Oval replacement filters. Our elements feature nanofibers that are 50% finer than OEM and a MERV 15 efficiency rating, the industry’s highest. ProTura technology in your dust collectors means superior filtration efficiency on sub-micron particulate (0.3 to 1.0 micron dust particles), lower emissions, longer filter service life and greater energy savings


  • Industry’s smallest fibers
  • Surface-loading performance
  • Unmatched release properties
  • No messy pre-coating materials required