1 / 7Filterbuy 20x20x1 MERV 13 Air Filter, 2-Pack
Pack: Filterbuy AFB20x20x1M13pk2 is a two-filter, MERV 13 pleated replacement air filter with a listed actual size of 19.5 by 19.5 by 0.75 inches. The nominal 20x20x1 size is a useful search guide, but match the actual measurements and your system’s requirements before ordering.
At a glance
- Listed actual dimensions are 19.5 x 19.5 x 0.75 inches despite the nominal 20x20x1 designation.
- The listing describes electrostatically charged synthetic media with 16 pleats per foot.
- The manufacturer claims it captures 98% of dust and recommends replacement every 90 days, with timing dependent on household conditions.
- The listing says it is made in the USA.
Reference price: $39.98
Price checked: Nov 14, 2026
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Pros and cons
Pros
- MERV 13 pleated media is a clearly stated filtration grade for buyers seeking finer-particle filtration than lower-rated options.
- The two-filter pack provides replacements for a later change without buying a larger multi-pack.
- Published actual dimensions help buyers compare the filter with the size required by their system.
Technical specifications
14 specifications| Brand | Filterbuy |
|---|---|
| Model | AFB20x20x1M13pk2 |
| Dimensions listed | 19.5"L x 19.5"W x 0.75"Th |
|---|---|
| Weight listed | 15.2 ounces |
| Mounting type | Slide In |
| Shape | Square |
| Material listed | Aluminum, Plastic, Polypropylene |
|---|---|
| MERV rating | 13 |
| Construction | Pleated |
| Airflow direction | Variable |
| Maximum temperature | 200 °F |
| Maximum velocity | 615 cfm |
| Compatible devices | Air Cleaner, Air Conditioner, Furnace, HVAC System, Heat Pump |
|---|---|
| Compatible HVAC systems | Commercial, Industrial, Residential |
What to know before buying
- Confirm your system calls for a 20x20x1 nominal filter and that the listed actual dimensions fit. The manufacturer generally suggests replacement every 90 days, but says conditions such as pets and allergies can affect timing. Its claims of 98% dust capture and longer life than fiberglass are listing claims, not independently verified performance results.
What’s in the box
Included- Air filters (2)
Who is it for?
A good fit for
- People replacing a nominal 20x20x1 furnace, air-conditioner, heat-pump, air-cleaner, or HVAC filter who need the specified actual size.
- Buyers seeking a MERV 13 pleated replacement and a two-filter quantity.
Less suited to
- Buyers whose system requires a different size or thickness, or whose system specifications do not support this filter grade.
Customer reviews on Amazon
- 5 stars
78% 78% - 4 stars
13% 13% - 3 stars
3% 3% - 2 stars
1% 1% - 1 star
5% 5%
Customer feedback describes the filter as capturing dust and working as intended. Feedback on value is mixed, with some customers considering the price good. These are reported impressions, not proof of the listing’s specific 98% dust-capture claim. The aggregate ratings are mostly favorable, but do not establish how the filter will perform in a particular HVAC system.
Positive themes
- Customers report effective air capture, including dust collection, and say the filter works as intended.
Mixed feedback
- Feedback on value for money is mixed, although some customers describe the price favorably.
Frequently asked questions
What are the filter’s actual dimensions?
The listed actual dimensions are 19.5 inches long, 19.5 inches wide, and 0.75 inches thick. Check these against the size specified for your unit rather than relying only on the nominal 20x20x1 label.
How often should I replace it?
The manufacturer generally recommends changing it every 90 days, while noting that household factors such as pets and allergies can change the interval.
Which systems does the listing name as compatible?
It lists air cleaners, air conditioners, furnaces, HVAC systems, and heat pumps. Fit still depends on using the correct size and on your equipment’s requirements.
How many filters are in the pack?
The listing identifies this as a two-pack and gives a unit count of 2 Count.
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