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Finding the best fit
If you know the model number of the filter you are replacing, enter it here. By entering a part number we can limit your selection to only those filters we know to be compatible.
Aprilaire #313 Air Filters
Regularly replacing your air filter will help improve the efficiency and longevity of your furnace.
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Save Your Furnace Tip #12:
Install a thermostat with a filter change feature. Some thermostats can be configured to keep track of either calendar days or system run time and display a message when it’s time to change your filter, humidifier water pad, or UV bulb.