1 Inch Air Filters

1 Inch Air Filters in Popular and Custom Sizes for Furnace and AC.

Whether you need a standard 20x20 air filter, a thin 24x28 filter, or a specific 1 inch air filter you can't find in stores, we will deliver exactly what your home or business requires while providing the following features:

  • Available in Standard and Custom Sizes
  • Superior Quality, Best Prices Guaranteed
  • High Filtration Efficiency
  • Multiple Alternatives for MERV Ratings
  • Ability to Keep Energy Costs Down By Up To 15%

Select your size from the drop down menu or shop extended sizes.

One Inch Air Filters

Standard 20x25 Air Filters with 1 Inch Width

Like 20x20 air filters, 20x25 filters are very common in homes and businesses across the United States. Considered standard filter sizes, both measurements can be purchased in four different MERV ratings – MERV 6, 8, 11, or 13. As you increase your MERV rating, the percent of air pollutants caught by the furnace filter increases as well. Despite their narrow width, our 1 inch air filters catch just as much dust and debris as other, thicker models. As long as you choose the correct size for your vent opening, your filter will block potentially harmful air particles as it should.