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🌬️ Breathe Better, Live Smarter — Filterbuy Filters for the Air You Deserve
Filterbuy’s 20x21.5x1 MERV 11 air filters deliver superior pet and allergy defense with electrostatic pleated media that captures 95% of dust and allergens. Designed for universal HVAC compatibility, these durable, USA-made filters last three times longer than standard fiberglass models, ensuring cleaner air and enhanced system efficiency with easy installation every 90 days.
| ASIN | B01N01O0EK |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #376 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #21 in Furnace Filters |
| Brand Name | Filterbuy |
| Color | Gold |
| Compatible Device | Air Cleaner, Air Conditioner, Furnace, HVAC System, Heat Pump |
| Customer Reviews | 4.5 4.5 out of 5 stars (20,157) |
| Date First Available | November 6, 2016 |
| Included Components | Air Filters |
| Is Discontinued By Manufacturer | No |
| Item Weight | 0.01 ounces |
| Item model number | AFB20x21.5x1M11pk2 |
| Manufacturer Warranty | Parts |
| Material Type | Aluminum, Plastic, Polypropylene |
| Model Info | AFB20x21.5x1M11pk2 |
| Part Number | AFB20x21.5x1M11pk2 |
| Product Dimensions | 19.88 x 21.5 x 0.75 inches |
| Special Features | Dust Collection, Easy to Install, Removable |
K**R
Good find for random sizes!
I searched high and low for the right size of filter my house is older so it is harder to come by but these were wonderful! Great quality, the airflow is wonderful as well! Best value for the price as the filter functions just as it says and protects your house! My household noticed a difference within 24 hours! We do have a small dog and it works great with her!
A**P
Air filter at a great price
Great air filters at a great price! Super easy to install and it definitely collects a bunch of debris.
D**L
it works but not happy with the fit the length is ok
These are not 4" wide , they are 3-3/4" the old one setting next to the new one. I have had these for a few months cause I purchased after I installed my last one so Bought these for replacements when needed . Or else Id return them ! I dded duct tape on one side so It doesnt pull air from around the side
G**Y
Cheaper than Menards
Pretty good quality...cheaper than Menardscheaper than Menards
S**A
Great choice
Significantly reduces common allergens and particulates compared with standard filters. Good quality, fits perfectly
W**N
Know what size you need before ordering
Work as indicated.
C**E
breathe the cleaner, cooler air at home
My ac air filter has a uncomment size which is 17x20x1. I can't find this size anywhere in the local store. I am glad I found it online and it fits perfectly. This filter's quality is awesome because I can feel the difference without it. it traps most of airborne particles as small as microns, including dust, pollen, pet dander, mold spores, and even some bacteria. Within a week of installing it, I noticed a dramatic difference: less dust on my shelves and furniture, no more sneezing fits when the AC kicks on, and a noticeable reduction in pet odors.
S**H
I used them another one too happy about
These were good but they sent me the wrong size they went in there, but it was awful tight. I would rather have the size I told him 20 x 25 x 4 1/4. They sent me 20 x 25 x 5.
P**L
tres sastisfait
I**N
It does what it says it should filtering the air
I**W
Does a great job of keeping air clean in house
L**R
good value for this product
G**U
Great quality furnace filters, at reasonable price. Delivered to your house
Trustpilot
3 weeks ago
2 weeks ago