1 / 7Filterbuy 20x20x1 MERV 8 Air Filter, 6-Pack
Pack: Filterbuy AFB20x20x1M8pk6 is a six-filter MERV 8 pleated replacement for compatible HVAC systems. Its listed actual dimensions are 19.5 inches square by 0.75 inch thick, so compare those measurements with your current filter rather than relying on the nominal 20x20x1 size alone.
At a glance
- The listed actual dimensions are 19.5 x 19.5 x 0.75 inches, smaller than the nominal 20x20x1 size.
- The manufacturer describes electrostatically charged synthetic media with 14 pleats per foot.
- Manufacturer guidance recommends replacement every 90 days, with timing dependent on household factors.
Reference price: $37.98
Price checked: Nov 13, 2026
View offerAhead of Black FridayExplore the selectionOften bought together
Pros and cons
Pros
- Six filters in one pack can cover repeated replacement needs.
- MERV 8 pleated media is positioned for routine dust and allergen filtration.
- The listing names several compatible equipment types, including furnaces, air conditioners and heat pumps.
Technical specifications
16 specifications| Brand | Filterbuy |
|---|---|
| Model | AFB20x20x1M8pk6 |
| Dimensions listed | 19.5"L x 19.5"W x 0.75"Th |
|---|---|
| Weight listed | 0.27 g |
| Nominal size | 20x20x1 |
| Mounting type | Slide In |
| Shape | Square |
| Airflow direction | Variable |
| Material listed | Aluminum, Plastic, Polypropylene |
|---|---|
| MERV rating | 8 |
| Construction | Pleated |
| Maximum temperature | 200 °F |
| Maximum velocity | 615 cfm |
| Compatible devices | Air Conditioner, Air Purifier, Furnace, HVAC System, Heat Pump |
|---|---|
| Compatible HVAC systems | Commercial, Industrial, Residential |
| Common applications | Allergen Reduction, High Strength |
What to know before buying
Listing details to confirm
The manufacturer generally recommends replacing filters every 90 days, but says timing can vary with filter size and factors such as pets and allergies. Match the actual dimensions and airflow direction to your system before installation. The listing claims 90% dust capture and says airflow is not restricted, while customer feedback includes mixed reports about fit and restricted airflow. Its listed weight of 0.27 g is unusual for an air filter and is unconfirmed.
What’s in the box
Included- Air filters (6)
Who is it for?
A good fit for
- People whose system accepts a filter measuring 19.5 x 19.5 x 0.75 inches and who want a six-pack of MERV 8 replacements.
- Buyers seeking a pleated filter for dust and pollen filtration in a compatible residential, commercial or industrial system.
Less suited to
- Anyone whose equipment requires a different actual filter size or a different filtration rating.
- Buyers who need a verified guarantee of improved air quality or unrestricted airflow.
Customer reviews on Amazon
- 5 stars
83% 83% - 4 stars
12% 12% - 3 stars
3% 3% - 2 stars
0% 0% - 1 star
2% 2%
Customer feedback highlights perceived quality, value, effective dust capture and easy installation, while some customers report fit or installation difficulties and restricted airflow. Those mixed experiences matter because the listed actual size is specific and system airflow requirements vary. The aggregate ratings lean strongly positive, but they do not establish how this filter performs in any particular HVAC setup.
Positive themes
- Customers describe the filters as effective at capturing dust and generally easy to install.
Mixed feedback
- Some customers report fit or installation issues, and airflow feedback is mixed.
Frequently asked questions
What are the actual dimensions?
The listing gives 19.5"L x 19.5"W x 0.75"Th. Confirm these measurements against your existing filter or equipment requirements.
How often does the manufacturer recommend replacing it?
The listing generally recommends replacement every 90 days, with timing subject to filter size and household factors such as pets and allergy concerns.
Which systems does the listing say it fits?
It names air conditioners, air purifiers, furnaces, HVAC systems and heat pumps. Fit still depends on the required filter dimensions.
Alternative options
Aerostar Air Filter 20x20x1 MERV 8 AC Filter, HVAC, Furnace Filter, 6 Pack | ACTUAL SIZE (19.75 x 19.75 x 0.75) AC Filter, HVAC, Furnace Filter Captures Dust, Lint & Pollen MERV 8 (MPR 600)
$31.93
Simply 10x20x1 Air Filter, Merv 8, MPR 600, 12 Pack, Furnace Air Filter for HVAC (Actual Size: 9.75"x19.75"x0.75") DUST, Pet, & Allergy Control
$61.16
ProShield 16x20x1 MERV 11 Enhanced Pleated HVAC Air Filter, 6 Pack | Made in the USA High Performance Replacement Filter for Furnace & Air Conditioning Systems
$48.96
Simply 18x24x1 Air Filter, Merv 8, 6 Pack, For Home AC Furnace & HVAC (Actual Size: 17.75"x23.75"x0.75") DUST, Pet, & Allergy Control
$45.89
Aerostar 21 1/4 x 23 1/4 x 1 Air Filter MERV 13, AC Furnace Filter, 12 Pack | HVAC & Home, Air Conditioner & Heater Replacement, Actual Size (21 1/4 x 23 1/4 x 3/4), MPR 1500/FPR 10, Made in USA
$166.99
Aerostar 20 x 22 1/4 x 1 Air Filter MERV 11, AC Furnace Filter, 12 Pack | HVAC & Home, Air Conditioner & Heater Replacement, Actual Size (19 7/8 x 22 1/4 x 3/4), MPR 1200/FPR 7, Made in USA
$127.99
Simply 12x20x1 Air Filter, Merv 11, 6 Pack, For Home AC Furnace & HVAC (Actual Size: 11.75"x19.75"x0.75") DUST, Pet, & Allergy Control
$40.46
Standard 20X20X1 HVAC Furnace Pleated Air Filter, 12 Pack, MERV 8
$61.00
MERV 13 20X20X1 HVAC Furnace Pleated Air Filter 95043.012020, 4 Pack MERV 13, Advan...
$87.00
Microparticle 20X25X1 HVAC Furnace Pleated Air Filter 85456.012025, 4 Pack MERV 10,...
$47.56
Aerostar 20x20x1 MERV 6 Air Filter, 6 Count | ACTUAL SIZE (19.75 x 19.75 x 0.75) AC Filter, HVAC, Furnace Filter for Dust, Lint & Pollen Control MERV 6
$33.99
Filterbuy 20x24x12 2V-Cell Air Filter MERV 14 Particle Defense (1-Pack) | Electrostatic Pleated HVAC AC Furnace Filters Replacement, Made in USA (Actual Size: 19.38 x 23.38 x 11.38)
$118.99
