Air-filters - Free Shipping & Returns
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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 #5:
Make sure your filter fits snug in its slot or cabinet. Gaps that allow air to bypass the filter can significantly reduce its effectiveness.