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Select Your AC or Furnace Filter Size

Whether you're looking for popular, hard-to-find, or custom air filter sizes, Air Filters Delivered has them. The first step is to find the AC filter size listed on your current filter. If the size isn't printed on it, you can simply measure it by following the instructions in our Helpful Tips. Keep in mind when ordering that the size category goes by the depth of the filter. For example, a 2" filter will measure two inches deep. Once you choose your HVAC filter size, you can select your preferred MERV rating to ensure you have the perfect-fit filter for your home or business.