• 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.

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  • 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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  • 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.

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14x20x1 AIRx High Flow Air Filter

5
17 reviews
◆
 
Average rating 4.7/5
5 stars
(15)
4 stars
(1)
3 stars
(0)
2 stars
(0)
1 star
(1)
AIRx 14x20x1-High-FlowOur#: 194357
Made in USA
14x20x1 AIRx High Flow Air Filter
14x20x1 AIRx High Flow Air Filter
14x20x1 AIRx High Flow Air Filter
14x20x1 AIRx High Flow Air Filter
14x20x1 AIRx High Flow Air Filter
14x20x1 AIRx High Flow 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 11 - Superior
MERV 11 - Superior Allergy sufferers
Actual Dimensions
Actual Dimensions 13-1/2 × 19-1/2 × 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.

$24.95

$31.19
Code DF20Save 20%
$24.95 per filter
Code DF20Save 20%
SAVE 0% 1-pack

Pack Size

In Stock, Ships onWednesday, Oct. 28th
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
14 × 20 × 1"
Actual Size
13 ½ × 19 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) 287 430 574 717 574
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
17 verified reviews
5★
(15)
4★
(1)
3★
(0)
2★
(0)
1★
(1)
5
4.7 / 5 (17)
James M. 337 days ago
5
Excellent service deliveries on time and pay a lil'bit more for value of products is NBD ?
M.D. 366 days ago
5
Good, effective filter
Mark F. 526 days ago
5
Perfect fit that gives a high volume of air flow, for my heat pump system in my motor home. I’m happy with all the dust that this filter catches.
stephen t. 747 days ago
4
Seem to be working fine. May take a few changes to really make a conclusion.
James M. 789 days ago
5
Filters work great
David S. 863 days ago
5
The filters are well made and will allow good airflow through my older AC system.
James M. 879 days ago
5
Awesome every 3 months
James M. 1137 days ago
5
Product is excellent and using both 18" and 14" air quality is outstanding
James M. 1181 days ago
5
Great quality but little expensive.
Art P. 1475 days ago
5
Very happy. Have been ordering for years and they work well
Bob C. 1536 days ago
5
Top of the line air filters reduce your airflow by 30% or more. These air filters allow more air to flow, allowing your fan to work less while still doing an excellent job of filtering out particles. Ask your HVAC specialist next time they service your unit. They will tell you that this filter will keep you warmer in the winter and cooler in the summer while still doing what it is made to do. Use this filter and put a paper towel over your air duct. You will be amazed at the difference. Plus, it does not cost more than a top-of-the-line filter from Walmart.
Thomas 1860 days ago
5
Love these due to my chocolate lab shepherd dog that sheds.
Darryl P. 1957 days ago
5
Meets my expectations.
Teddie M. 2035 days ago
5
Awesome filter...
Thomas 2039 days ago
5
I have a large dog so I love the beast and love knowing the air flow is not restricted.
Jennifer J. 2469 days ago
5
Quality filter; unable to find this filter anywhere else
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