BNX TruFilter 20x20x4 (19.5’’ x 19.5’’ x 3.63‘’ Slim Fit) MERV 13 Air Filter (2-Pack) – MADE IN USA – Air Conditioner HVAC AC Furnace Filters Health, Allergies, Mold, Bacteria, Smoke, MPR 1900 FPR 10
$56.99 Original price was: $56.99.$45.59Current price is: $45.59.







Price: $56.99 - $45.59
(as of Sep 13, 2025 09:38:30 UTC – Details)
Product description

MERV 13 Air FIlter
CAPTURES MICROSCOPIC PARTICLES
Our Electrostatically-charged Air Filters are designed to capture up to 98% of airborne particles.
OEKO-TEX Certified
Good for You + The Environment
BNX Air Filters are OEKO-TEX STANDARD100 certified to ensure they are safe from harmful chemicals.
1 Filtered Particles
2 Filtration Efficiency
3 Replacing Air Filters
4 Various Sizes
5 Certifications


Air Filter Replacements
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Customer Reviews
4.6 out of 5 stars 18,292
4.6 out of 5 stars 18,292
4.7 out of 5 stars 5,848
4.8 out of 5 stars 5,429
4.6 out of 5 stars 18,292
4.6 out of 5 stars 18,292
Price
$45.59$45.59
—
$46.74$46.74
$43.99$43.99
$45.59$45.59
$47.99$47.99
Comparable Ratings
MPR 1500-1900 & FPR 10
MPR 1500-1900 & FPR 10
MPR 1000 -1200 & FPR 7
MPR 600 – 700 & FPR 5
MPR 1500-1900 & FPR 10
MPR 1500-1900 & FPR 10
Filtration Efficiency
98% Airborne Particles
98% Airborne Particles
90% Airborne Particles
85% Airborne Particles
98% Airborne Particles
98% Airborne Particles
Dust & Pet Dander
✔
✔
✔
✔
✔
✔
Pollen & Mold Spores
✔
✔
✔
✔
✔
✔
Household Lint & Dust
✔
✔
✔
✔
✔
✔
Bacteria
✔
✔
✔
✘
✔
✔
Smog
✔
✔
✔
✘
✔
✔
Virus Carriers
✔
✔
✔
✘
✔
✔
Smoke
✔
✔
✔
✘
✔
✔
Fireplace Smoke
✔
✔
✘
✘
✔
✔
The video showcases the product in use.The video guides you through product setup.The video compares multiple products.The video shows the product being unpacked.
What is the best air filter for my home?
The best air filter depends on size or dimensions, filtration rating (MERV, MPR, FPR), and quality your AC unit requires. Our filters capture up to 98% of microscopic airborne particles (3-10 um) with industry leading low pressure drop.
How do I replace my air filter?
Confirm the size of your air filter. Remove plastic wrapping on your new filter and locate the arrows to indicate the direction of air flow. Open your air vent cover, insert the new filter with the arrows facing correctly, then shut air vent cover.
What does MERV mean in air filters?
MERV stands for Minimum Efficiency Reporting Values which reports a filter’s ability to capture microscopic particles ranging from 0.3 and 10 microns (µm). The higher the MERV level, the more efficient it is at filtering microscopic particles.
What is the difference between Nominal Size and Actual Size of Air Filters?
The nominal size is a rounded number to the nearest whole or half inch, (ex: 20 x 20 x 1). The Actual Size is the exact measurement that shows the filter’s actual dimensions (ex: 19.75 x 19.75 x .75). All Air Filters display both sizes.
What quantity of air filters should I buy?
This is dependent on each customers unique air filter requirements. Our selection includes pack sizes that range from 1 to 12 filters. Each filter last up to 3 months depending on various aerosol conditions such as, dust, smoke, and pets.
Actual Size: 19 1/2’’ x 19 1/2’’ x 3 5/8‘’.
20x20x4 MERV 13 air filter replacement for your air conditioner, furnace or HVAC system. Comparable with MPR 1500-1900 & FPR 10. Provides optimal defense with electrostatically charged filter media and superior low air flow resistance. Based on ASHRAE Standard 52.2-2017 Initial Efficiency / Resistance.
MADE IN USA, SUSTAINABLY – Proudly manufactured by BNX Converting, LLC in Houston, TX, a registered and approved facility (EPA Registration # 101638-TX-1). Classified in accordance with UL 900 (Certificate Number UL-US-2403701-0).
SUPERIOR PERFORMANCE – The BNX MERV 13 air filter media outperforms standard fiberglass filters and adopts the latest in electrostatic filtration technology to capture maximum pollen, mold bacteria, smoke, carriers & other microscopic particles while maintaining industry leading superior low air flow resistance.
CAPTURES MICROSCOPIC PARTICLES – The BNX air filter has a MERV 13 rating allowing it to capture 98% of airborne particles without impacting air flow. Captures microscopic particles such as virus-carriers, bacteria, odors, smoke, and pollen, pet dander, allergens, dust, lint, mold, dust mites, smog.
BNX Quality Promise & Applications – BNX is committed to delivering the highest quality American made safety products, made with American workers, and using the latest automated manufacturing processes and technology with the strictest quality standards

Jane Landsman –
reliable and reasonable
Love these filters. I live in a Southern state. Right now we have smoke, lots of rain which means mold spores, pollen and I have a dog and two cats. My usual brand was becoming very expensive so I found myself not changing the filter as often, defeating the purpose of a filter. This is my second order and I have found the filters work just as well as the very expensive ones. Thank you for a great product.
Amber –
Excellent Price and Quality
I usually buy individual filters one at a time when they are needed. With prices in stores going up, that method isn’t sustainable anymore. Buying this pack of filters is the only route I’m going into the future. I’m getting the same great quality as the name brand filters in the store, if not better, for a better bundle price. Sizing is perfect, no problem installing or removing.
Hathi –
Worked well
Perfect fit. Seems to be of good quality and not limiting airflow in my furnace. Worth the price for this product!
sams mom –
Great filter unfortunately delivery damaged a bit
It arrived a little bendy because it was packaged with my dog food order. But the filter is what I expected. Size is correct, I order these all the time and they work great.
Hector Escobar –
Same quality, same price.. my go to filter
Very consistent seller. We’ve been purchasing their AC filters for a couple of years.. every time it seems like the same high quality for the low price. Perfect fit. Installed to my AC unit easily. Every time I replace the filter, it seems to do its job.
C Sanders –
Quality Filters
I’ve been using these filters for a few years now, and they’re excellent for reducing the amount of dust in my home and improving overall air quality.
Timothy Smith –
Great filters at a great price!
First, it is a great price. Second, having enough on hand to change my filter every two months is even better. They are high quality filters that handles my family and the dog.
Kmaasify –
Too restrictive for my HVAC, but good company support
This HEPA filter is very dense and works well for air cleaning, but it was too restrictive for my heat pump/AC system. After installing it, my unit would start and then immediately shut off, which went away when I switched back to my old standard filter. If your HVAC system isn’t designed for high-MERV or thick HEPA filters, this one could block too much airflow and put stress on your equipment. However, the seller was great and offered a full refund or an exchange for a less occlusive option.
Deborah Schmidt –
There have been a lot of wildfires in our province this summer. The air quality was poor. I also have bad allergies. There was a noticeable improvement in air quality when I installed this filter. I highly recommend these filters and I found them to be a little cheaper than the ones you can buy in a store.Wr
S Mom –
I tried these in my work furnace. I do notice that there is a lot more dust on the furniture than there was with the previous filters. So not the greatest in my book.
karin –
I was surprised to see that the filters are encased in cardboard. For these reason I cannot use it as I needed a more solid frame construction and not something that could get damp and warp/mold
Rob Dozzi –
Goods arrived damaged – will not fit on slot.
Pilar Pérez –
Ideal p hacer un filtro de ambiente casero