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Actual Size: 20.75x20.63x5"
3 month filters
New look, same great filter
We’re updating the “look” of our filters.
While we do, your air filter will be the correct size & performance, but may look different than the image above. Learn more
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Made in the USA
Ships in 24 Hours
Available In MERV Rating: 8, 11, 13
Made in the USA
Ships in 24 hours
Filterbuy filters are designed to last up to 90 days, 3 times longer than fiberglass filters. If you have pets, kids, or allergy sufferers in your home or business, replace your filters more often to maintain superior indoor air quality and keep your energy costs low.
All air filters are manufactured by Filterbuy in the USA using 100% American made components. By purchasing directly from the manufacturer, you’re saving big on a premium product
20x21x5 pleated air filters are at least 20 times more efficient than fiberglass filters. Filter frames are made of beverage board, which stays strong through humidity and temperatures up to 200° F. Synthetic media provides significantly higher particulate efficiency than standard cotton media.
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 MERV 8 |  MERV 11 |  MERV 13 | |
|---|---|---|---|
| Best for | Standard Residential/Commercial Healthy Families | Superior Residential/Commercial Allergy Sufferers | Optimal Residential/Commercial Hospital Grade |
| Comparible ratings | MPR 600 & FPR 5 | MPR 1000-1200 & FPR 7 | MPR 1500 - 1900 & FPR 10 |
| Filtration | Captures 90% of Airborne Particles | Captures 95% of Airborne Particles | Captures 98% of Airborne Particles |
| Dust, lint & debris | |||
| Mold, pollen | |||
| Dander, dust mites | |||
| Smoke & smog | |||
| Bacteria | |||
| Odor, vocs |
Generally, we recommend you replace your air filters every 90 days. Find out below if you should change your filters more often.
Change your filter every
6 weeks
to ensure indoor air quality is at its best.
Change your filter every
2 months
to avoid shedding and odor buildup.
Change your filter every
2-3 months
as having clean air is even more important with children in your home.
Change your filter every
6 weeks
to ensure indoor air quality is at its best.
Change your filter every
2 months
to avoid shedding and odor buildup.
Change your filter every
2-3 months
as having clean air is even more important with children in your home.
Good so far
Archie W.
verified buyerGreat delivery time. These filters work extremely well with the electronic air cleaner!
Thomas O.
verified buyerSo I was buying my filters through Amazon and came across your ad. Wowzer, you're way cheaper and the quality is perfect. Plus a discount for auto ship which you need the filters anyway. Got set up and it's awesome. Thank you!!
Shelly N.
verified buyer
