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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.
21˝ x 21 x 5" BAYFTAH21M
Regularly replacing your air filter will help improve the efficiency and longevity of your furnace.
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Save Your Furnace Tip #4:
MERV stands for Minimum Efficiency Reporting Value, and measures a filters’ efficiency in removing small particles. The higher the MERV rating, the more particles the filter can remove.