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Actual Size: 19.50x20.50x0.75"
Merv 8
Standard
Merv 11
Superior
Merv 13
Optimal
Merv 8
Standard
Merv 11
Superior
Merv 13
Optimal
We have been FilterBuy customers for 10 years. It is so easy and convenient to order filters from FilterBuy as our furnace uses a size that is not available in brick and mortar stores. The filters are always excellent quality and they have a selection of grades of filtering to choose from. They are so great to work with. I've only had a couple of issues and one of those was my error but they made it very easy to rectify the problem.
Patti E.
verified buyerI have been purchasing these filters for many years now and am completely satisfied not only with the filter but also with the great service that Filterbuy has given me.
C E.
verified buyerThis cardboard frame of this filter is MUCH sturdier than the filters I have purchased the past two years. So happy I found Filterbuy
Valerie H.
verified buyer
All air filters have a nominal size and an actual size.
The nominal size is rounded up to the nearest whole or half inch, and printed in a larger font.
The actual size is an exact physical measurement of the filter, printed in a smaller font.
20x21x1
Actual 19.50x20.50x0.75"
If the sizes printed on your current filter match the sizes shown above, this is your filter.
If your previous filter does not have dimensions printed on the frame, use a tape measure and record the length x width x depth. Then, round up to the nearest half inch to find the corresponding nominal size.
MERV 11 filters improve indoor air quality and ensure an efficient HVAC system by removing 95% of airborne pollutants while maintaining proper airflow.
These filters capture dust, lint, debris, mold, pollen, pet dander, dust mites, and auto emissions making sure they do not collect on your evaporator coil, in your furnace, or air ducts.
Filterbuy filters are more durable and effective than traditional fiberglass filters. All of our filters are constructed with pleated, reinforced, electrostatically charged filter media to optimize airflow. This design lasts 3x longer than fiberglass models, capturing harmful particles and improving air quality for all.
We care about the comfort and health of our customers. Our filters protect your home air quality from bacteria, dust, mold spores, and more - ideal for allergy and asthma sufferers. You can feel safe and breathe freely knowing your air, home, and health are protected.
Don't let your HVAC system fail you. Protect it and increase your system lifespan with Filterbuy replaceable air filters, designed to help you avoid future costly repairs. Filterbuy filters will improve your system efficiency, saving you money on energy costs. By choosing a high-quality air filter today, you are making your home a safer place for you and your family.
Our family-owned and operated company has evolved since its inception in 1958 to the filtration business that you know and love today. As our team has grown to nearly 1,000 employees, we have continued to keep our commitment to community investment and personal aid at every opportunity.
Our long lasting disposable filters need to be replaced less often, and nearly all material is recyclable.
Installation is simple. Each filter has an airflow arrow printed its side. This arrow must match the direction of the air when the filter is placed in your furnace or central air return ducts.
From our first air filter sold in 2013, we have proudly built our business in the USA, now manufacturing in Alabama, Pennsylvania, Texas, and Utah with additional distribution centers in California, Florida, and Illinois. This robust network gives us the unique ability to quickly fulfill diverse, custom orders to households and businesses across the country.
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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 |
We have been FilterBuy customers for 10 years. It is so easy and convenient to order filters from FilterBuy as our furnace uses a size that is not available in brick and mortar stores. The filters are always excellent quality and they have a selection of grades of filtering to choose from. They are so great to work with. I've only had a couple of issues and one of those was my error but they made it very easy to rectify the problem.
Patti E.
verified buyerI have been purchasing these filters for many years now and am completely satisfied not only with the filter but also with the great service that Filterbuy has given me.
C E.
verified buyerThis cardboard frame of this filter is MUCH sturdier than the filters I have purchased the past two years. So happy I found Filterbuy
Valerie H.
verified buyer
