• Spend $70 or more and your order ships free! We'll get your filters out the door fast so you can enjoy clean air and water.*

    * Orders under $70 ship for $5.99.

  • Shop with confidence! If you're not completely satisfied with your purchase, you have up to one year to return it for a refund or exchange. We stand behind every filter we sell.

    Learn More

  • Every order is carefully packed and shipped by our team in Indiana. Your purchase helps support American jobs and hardworking families right here in the Midwest. Our AIRx Furnace / AC Filters and ClearChoice Fridge Filters are made in the USA.

Cart 0

We don't know what's in your water,
but we know there's nothing in your cart.

Menu

  • Spend $70 or more and your order ships free! We'll get your filters out the door fast so you can enjoy clean air and water.*

    * Orders under $70 ship for $5.99.

  • Shop with confidence! If you're not completely satisfied with your purchase, you have up to one year to return it for a refund or exchange. We stand behind every filter we sell.

    Learn More

  • Every order is carefully packed and shipped by our team in Indiana. Your purchase helps support American jobs and hardworking families right here in the Midwest. Our AIRx Furnace / AC Filters and ClearChoice Fridge Filters are made in the USA.

Cart 0

We don't know what's in your water,
but we know there's nothing in your cart.

Menu

20x25x1 AIRx High Flow Pleated Air Filter

5
89 reviews
◆
 
Average rating 4.7/5
5 stars
(79)
4 stars
(5)
3 stars
(1)
2 stars
(0)
1 star
(4)
AIRx 20x25x1-High-FlowOur#: 186650
Made in USA
20x25x1 AIRx High Flow Pleated Air Filter
20x25x1 AIRx High Flow Pleated Air Filter
20x25x1 AIRx High Flow Pleated Air Filter
20x25x1 AIRx High Flow Pleated Air Filter
20x25x1 AIRx High Flow Pleated Air Filter
20x25x1 AIRx High Flow Pleated Air Filter
20x25x1 AIRx High Flow Pleated Air Filter
20x25x1 AIRx High Flow Pleated Air Filter
Compatibility guarantee — Wrong fit or not happy - we'll make it right, up to a whole year
Change every 3 months
Change every 3 months Swap on schedule for best performance
Made with pride in the USA
Made with pride in the USA Your purchase supports American jobs
MERV 11 - Superior
MERV 11 - Superior Allergy sufferers
Actual Dimensions
Actual Dimensions 19-1/2 × 24-1/2 × 3/4"
Compatibility guarantee
Compatibility guarantee Wrong fit or not happy - we'll make it right, up to a whole year

Filter Description

Having trouble with your AC or Furnace shutting down or struggling to keep up with heating or cooling needs? Energy bills costing too much? The New AIRx High Flow filter solves the problem with improved airflow of ordinary pleated filters.

  • Perfect for all HVAC systems, especially older or sensitive systems.
  • MERV 11 rating means the filter attracts household allergens like dust, pollen, mold spores, dander, smoke and smog.
  • Did we mention 65% more pleated media?!
  • Made with pride in the USA.
  • Fast Shipping and Free Returns.

All product names, logos, brands, trademarks and registered trademarks are property of their respective owners. All company, product and service names used on this page are for identification purposes only. DiscountFilters.com and National Trade Supply, LLC are not affiliated with these brands.

$59.96

$74.95
Code DF20Save 20%
$14.99 per filter
Code DF20Save 20%
SAVE 42% 4-pack

Pack Size

In Stock, Ships onTuesday, Nov. 10th
You're $70.00 away from free shipping! Buy this and you're only from free shipping! Buy this and your order ships free!

Orders over $70 ship free.

Your Order Ships Free!

Compatibility guarantee

Wrong fit, leak, or just doesn’t work? We’ll send the right one. Free return shipping for all orders.

365-day satisfaction

Not happy? Send it back any time in the first year — we’ll make it right. Yes, even an open pack you’ve been running for months.

No-hassle returns

No restocking fees, no return-merch authorization mazes — just start a return and our helpful Customer Experience team will assist.

Filter Maintenance

Is it time to change your Filter?

Generally, we recommend you replace your air filters every 90 days. Find out below if you should change your filters more often.

If someone in your home has asthma or allergies change your filter every

6 Weeks

to ensure indoor air quality is at its best.

If you have pets change your filter every

2 Months

to avoid shedding and odor buildup.

If you have young children change your filter every

2–3 Months

as having clean air is even more important with children in your home.

Filter Specifications

What does this filter remove?

Filtration capabilities
Nominal Size
20 × 25 × 1"
Actual Size
19 ½ × 24 ½ × ¾"
Filter Media
Electrostatically charged 100% synthetic gradient media that does not support microbiological growth
Filter Support Grid
30 gauge galvanized expanded metal grid
Frame
Moisture resistant double-wall beverage board
Max Temperature
180F (82C) continuous service, peak 225F (107C)
Max Humidity
Resistant to 100% R.H.
Initial Resistance
0.14" WC
Rated Velocity
295 FPM

Performance Testing

Particle size efficiency · MERV 11

Share of particles captured, by particle size

0.3–1.0 µm 1.0–3.0 µm 3.0–10 µm
28% 68% 86%

Airflow and resistance

Initial resistance at each airflow rate; lower resistance means less strain on your system

Airflow rate (CFM) 512 768 1024 1280 1024
Initial resistance (in. w.c.) 0.09 0.14 0.2 0.28 0.2

Max rated airflow

Customer Reviews

4.7 4.7 out of 5 stars
89 verified reviews
5★
(79)
4★
(5)
3★
(1)
2★
(0)
1★
(4)
5
4.7 / 5 (89)
CHARLES M. 61 days ago
5
First time I have purchased this high flo filter. I was using same merv in a standard filter. The hi flo improved the out put of my AC unit tremendously.
Manuel M. 153 days ago
5
The Filters came on box completely sealed ? thank you in advance Manny
brenda j. 181 days ago
4
Great product always great to deal with this company. Accurate and fast service.
Joseph F. 218 days ago
5
Bought these for my son he said they work great
KEN 220 days ago
5
For a filter that has 1100 MERV and still has high flow is fairly rare. This helps to reduce the load on my furnace fan motor..
Roger S. 257 days ago
5
At least as good quality as what I can get at the store at a much much better price.
Jo G. 260 days ago
5
It's easy to install.
Chandler 268 days ago
5
Well made product
Dean S. 471 days ago
5
delivered undamaged. Products were as expected. First time using this product, so after 3 months I will advise of any troubles.
Dayna D. 476 days ago
5
Very pleased.
Aaron 502 days ago
5
This product works as well as the original.
Sissy76 542 days ago
5
These have been ordered before. Great price and very good quality filters. I would recommend these for my friends.
Chandler 633 days ago
5
Quality product
Ladygrac 691 days ago
5
Great purchase, will buy again
Brian H. 746 days ago
5
Great filters. What we need is great filtration with minimal flow restriction. These filters give us that perfectly. The big culprit in our home is pets and their fur. We also have the usual dust and all. Once a month change with these does the trick.
James C. 760 days ago
5
Nice filter
JUSTIN W. 837 days ago
5
Airflow seems great!!! High quality filters
Richard K. 841 days ago
5
Great product and service.
dick h. 841 days ago
5
excellent product. Excellent value.
Sissy76 842 days ago
5
I ordered these before. They work.
Margaret 1006 days ago
5
Exactly what I needed. Good quality and the price was great. Also, I received them sooner than I had expected. Thank you for a job well done.
michael s. 1021 days ago
5
Great filters.
Paul K. 1037 days ago
5
A very good product that does what it’s supposed to do. Very easy to reorder and arrived very quickly. I am very satisfied !! Thank you…
Bruce E. 1037 days ago
5
these filters seem to be better quality than found at auto parts stores and at a lower price.
Judith M. 1040 days ago
5
It works well with my system
Lisa 1054 days ago
5
Perfect. Arrived quickly and now have enough filters to get to spring.
<
1 2 3
>