St. Patrick's DaySt. Patrick's Day

Know Your Filter Size?

Enter it here to quickly find a replacement

Can't find a size? Create your own custom size filters here.

Shop Popular brands

Learn about MERV Ratings

What's right for your home?

MERV 6

  • LINT
  • DUST
SHOP NOW

COMPARABALE TO MPR 300 & FPR N/A

MERV 7+ CARBON

  • LINT
  • DUST
  • MOLD SPORES
  • DUST MITES
  • ODOR
SHOP NOW

COMPARABALE TO MPR 600 & FPR 5 + TRAPS ODORS AND UNPLEASANT SMELLS

MERV 8

  • LINT
  • DUST
  • MOLD SPORES
  • DUST MITES
Shop Now

COMPARABALE TO MPR 600 & FPR 5

MERV 11

  • LINT
  • DUST
  • MOLD SPORES
  • DUST MITES
  • POLLEN
  • PET DANDER
  • SMOKE
  • SMOG
Shop Now

COMPARABALE TO MPR 1000-2000 & FPR 7

MERV 13

  • LINT
  • DUST
  • MOLD SPORES
  • DUST MITES
  • POLLEN
  • PET DANDER
  • SMOKE
  • SMOG
  • COUGH & SNEEZE
  • VIRUS CARRIERS
  • BACTERIA
Shop Now

COMPARABALE TO MPR 1500-1900 & FPR 10

Custom Size Air Filters!

Trouble finding the right size filter? We've got you covered. We specialize in custom size filters and can build any size air filter.

About Factory Direct Filters

Since 2010, we've been manufacturing and delivering high quality, USA-made air filters at prices right for your business, office, or home.