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Most common home air filter sizes See All Filter Sizes
Most Popular Sizes Popular 1" Depth Sizes Popular 2" Depth Sizes Popular 4" Depth Sizes
20 x 30 x 1 14 x 14 x 1 10 x 10 x 1 12 x 16 x 2 16 x 25 x 4
20 x 25 x 1 12 x 12 x 1 12 x 24 x 1 16 x 19 x 2 20 x 25 x 4
20 x 20 x 1 14 x 25 x 1 16 x 20 x 1 16 x 20 x 2 Popular 6" Depth Sizes
16 x 25 x 1 14 x 20 x 1 20 x 24 x 1 20 x 20 x 2 16 x 25 x 6

CleanerFilters Air Quality Chart

See Quality Comparison Chart »

  Good Basic Filtration Better Allergy & High Dust Best Severe Allergy
APR Efficiency Rating* 1550 1950 2250
Filter Effectiveness removes 65% of: removes 90% of: removes 95% of:
Dust/Dust Mites
Pet Dander
Mold Spores
Odor Reduction    
*The APR represents manufacturer’s efficiency rating for capturing small airborne particles.

About provides an easy way to order air filters from the convenience of your home! Our simple online process allows you to enter the size of your air filter, choose the quality of the filter, and select how often you want new ones delivered to your doorstep.

  • Stop forgetting to change your air filter
  • No more driving around town to find the right filter size
  • Keep the air in your home cleaner!


Air Filter Tips

How Often Do I Change Air Filters?
Experts recommend home air filters be replaced every 90 days. If you have household pets or family members with allergies, you may want to replace your filters every 30 or 60 days.

What is a MERV Rating?
MERV ratings are an industry standard developed by ASHRAE to measure filtration performance. The higher the MERV rating, the less dust gets through and thus the cleaner the air is in your home!

Hard to Find Filters

Have you had trouble finding the right air filter size for your home? Most air conditioning units use standard size filters. If you have a hard to find filter size, has a solution for you.

Unlike retail stores with limited selections, carries residential and commercial air filters in over 250 sizes, so you can easily find the correct size in a matter of seconds.