Do you have an Aprilaire Air Cleaner that can be used for a retrofit downflow furnace?

Consumer question:

Do you have a model that can be used as a retrofit for a downflow furnace with a 20x25x1 filter?

Aprilaires’ response:

Thank you for contacting us regarding our Aprilaire air cleaners. We have two models that will fit for 20 x 25. Our model 2210 and 4200. The 2210 is shipped with a MERV 10 filter but can be upgraded to the MERV 13. The 4200 ships with the MERV 13 filter and the electronic air cleaner control. Please view the attached literature for the air cleaner products.

You can contact an Aprilaire dealer regarding pricing and installation availability. To find a local dealer, enter your zip code in the dealer locator at If you don’t have an Aprilaire dealer in your area, feel free to contact any licenced HVAC company for pricing and installation.

If you have any further questions regarding this or any of our products, please feel free to contact our customer service department at your earliest convenience.

4 thoughts on “Do you have an Aprilaire Air Cleaner that can be used for a retrofit downflow furnace?

  1. tony barake

    Do you have retrofit air filters to replace a carrier electrostatic air cleaner – i no longer want to use the electrostatic.
    The filter size os 24 x 18" and the model is Carrier 31KAX

  2. roy

    Thank you for the email regarding upgrading to an Aprilaire air cleaner.

    It may be possible to use the Aprilaire competitive upgrade kit model 813 which dimensions are 20”x25”. The frame that is supplied with the filter is adjustable for the 18” height. Ask you local HVAC contractor to examine your filter assembly to ensure the measurements coincide. If you would prefer to replace the entire cabinet and replace it with an Aprilaire assembly, your local HVAC contractor can assist with that also.

  3. Frank Obreza

    I have a carrier electronic air cleaner that does not work. 18x 28×6.
    Do you have a retro to fit? Any suggestions?

  4. aaron

    Unfortunately we don’t have a retrofit kit that has been tested to work on a carrier electronic unit.
    Do you know what the dimensions are on the unit?


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