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  • 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.

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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 Greenwood, Indiana
Made with pride in Greenwood, Indiana Your purchase supports American jobs
MERV
MERV Find your ideal filtration level
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.
Better airflow means your AC or Furnace doesn't have to work as hard and will heat or cool your home in less time and at a lower energy cost.
With 65% more filter media, High Flow filter greatly improves air flow while reducing potentially harmful pollutants in your air.
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.

$59.96

$74.95
Code DF20 · Save 20%
$14.99 per filter
Code DF20 · Save 20%
SAVE 42% 4-pack

Pack Size

In Stock, Ships onWednesday, Sep. 30th
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. $5.99 otherwise.

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

Performance Rating

MERV (µm) PSE (%) 0.3-1.0 1.0-3.0 3.0-10 Airflow Rate (CFM) 512 768 1024 1280 1024 * * Max Rated Airflow
11 28 68 86 Initial Resistance (IWC) 0.09 0.14 0.2 0.28 0.2 *
MERV
11
(µm) PSE (%)
0.3-1.0 28
1.0-3.0 68
3.0-10 86
Airflow Rate (CFM) Initial Resistance (IWC)
512 0.09
768 0.14
1024 0.2
1280 0.28
1024 * 0.2 *
* Max Rated Airflow

About This Product

Is this the right air filter for you?

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.

Better airflow means your AC or Furnace doesn't have to work as hard and will heat or cool your home in less time and at a lower energy cost. 

With 65% more filter media, High Flow filter greatly improves air flow while reducing potentially harmful pollutants in your air.

  • 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.

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. 20 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. 112 days ago
5
The Filters came on box completely sealed ? thank you in advance Manny
brenda j. 140 days ago
4
Great product always great to deal with this company. Accurate and fast service.
Joseph F. 177 days ago
5
Bought these for my son he said they work great
KEN 179 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. 215 days ago
5
At least as good quality as what I can get at the store at a much much better price.
Jo G. 218 days ago
5
It's easy to install.
Chandler 226 days ago
5
Well made product
Dean S. 429 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. 434 days ago
5
Very pleased.
Aaron 460 days ago
5
This product works as well as the original.
Sissy76 500 days ago
5
These have been ordered before. Great price and very good quality filters. I would recommend these for my friends.
Chandler 591 days ago
5
Quality product
Ladygrac 649 days ago
5
Great purchase, will buy again
Brian H. 699 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. 714 days ago
5
Nice filter
JUSTIN W. 795 days ago
5
Airflow seems great!!! High quality filters
Richard K. 799 days ago
5
Great product and service.
dick h. 799 days ago
5
excellent product. Excellent value.
Sissy76 800 days ago
5
I ordered these before. They work.
Margaret 965 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. 979 days ago
5
Great filters.
Paul K. 996 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. 996 days ago
5
these filters seem to be better quality than found at auto parts stores and at a lower price.
Judith M. 999 days ago
5
It works well with my system
Lisa 1012 days ago
5
Perfect. Arrived quickly and now have enough filters to get to spring.
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