Everyone should change filters every 3 months no matter how dirty they are. I choose MERV11-13 filters based on personal preference, but MERV8 is more than adequate for almost any home. At the same time, the price of these filters is enough to justify 5 stars. If you only need to replace one filter, this 6-pack is enough to last you a year and a half with filter replacements and is almost half the price of all the other options. And made in the USA for download. Depending on your geographic location, a significantly smaller size than MERV8 is still appropriate, and there may be cheaper options in those cases. This is a hassle free purchase.
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