Ohio Merv 11 or 13 Filter

Discussion in 'Maintenance and Troubleshooting' started by nightowl, Feb 20, 2021 at 12:23 PM.

  1. nightowl

    nightowl New Member

    I have a Century HZD036 Geothermal unit and have been using merv 11 filters. Is it ok to use merv 13 filters in it?
     

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