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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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16x25x1 AIRx High Flow Pleated Air Filter, 4-Pack

5
79 reviews
◆
 
Average rating 4.8/5
5 stars
(68)
4 stars
(6)
3 stars
(4)
2 stars
(1)
1 star
(0)
AIRx 16x25x1-High-FlowOur#: 186647
Made in USA
16x25x1 AIRx High Flow Pleated Air Filter, 4-Pack
16x25x1 AIRx High Flow Pleated Air Filter, 4-Pack
16x25x1 AIRx High Flow Pleated Air Filter, 4-Pack
16x25x1 AIRx High Flow Pleated Air Filter, 4-Pack
16x25x1 AIRx High Flow Pleated Air Filter, 4-Pack
16x25x1 AIRx High Flow Pleated Air Filter, 4-Pack
16x25x1 AIRx High Flow Pleated Air Filter, 4-Pack
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, the High Flow filter greatly improves airflow 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 40% 4-pack

Pack Size

In Stock, Ships onMonday, Oct. 5th
Add $70.00 more to unlock free shipping! Add this and you're just 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
16 × 25 × 1"
Actual Size
15 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) 410 615 819 1024 819 * * 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)
410 0.09
615 0.14
819 0.2
1024 0.28
819 * 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, the High Flow filter greatly improves airflow 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

4.8 4.8 out of 5 stars
79 verified reviews
5★
(68)
4★
(6)
3★
(4)
2★
(1)
1★
(0)
5
4.8 / 5 (79)
mcsp 10 days ago
5
Great quality filters for in the summer with the central AC running.
Pete L. 15 days ago
5
Maintains a quality air level with very little stress on the fan unit
Andrew S. 43 days ago
5
Our HVAC unit is more difficult than most and installers recommended a lower filter quality to function better. But these high air flow designs are a godsend they work amazing and don't cause our home unit to overheat in the winter.
Robert M. 109 days ago
5
Fantastic product and company.
David R. 285 days ago
5
The high flow filters do an excellent job just as advertised.
PH 288 days ago
5
The airflow is much better
Wayne H. 321 days ago
5
The only place I buy my filters.
Randall B. 335 days ago
5
good value.
David R. 373 days ago
5
Excellent quality Merv-11 high flow HVAC filter. Like that it is high flow and does not put a strain on the fan motor and air flow.
Susan C. 385 days ago
5
Easy ordering.
Jack M. 395 days ago
5
I love having a box of quality filters delivered and always available. Helps with allergies, dust and air quality.
Gerald C. 470 days ago
5
Excellent quality compared to what's found at local stores, and the packaging for shipment is far superior to what I've received in the past from other companies. This is my second order, and both orders were excellent
Robert M. 471 days ago
5
Seems good so far
William C. 593 days ago
5
I change the filter every 3 months and it is still clean after 3 months of use.
DAVID 597 days ago
5
Fast shipping, good quality.
Bob T. 606 days ago
5
This product is working great. The fit is very good.
TC 624 days ago
5
These filters work great and really are high flow! I am very satisfied with these.
Rachel H. 641 days ago
5
Easy to understand removal and replacement. Perfect for our propane furnace.
Sue K. 645 days ago
5
This filter fit into my furnace perfectly when other filters wouldn't go in all the way. Perfect sizing!
Christina R. 763 days ago
5
I’m curious to see if these filters are hard on an older system or if they’ll help an older system produce more air? The add say it’ll help. But I’m not sure. I’m having trouble with an older system so I bought them to help it out.
dennis p. 770 days ago
5
Great filter well built
Lisa C. 782 days ago
5
I am happy with Discount Filter AC filters. The quality is equal to or exceeds other brands I have used and the price is less than those other brands.
Richard K. 803 days ago
5
Great product and service.
Morreece C. 824 days ago
5
I've used it for many years!
Glen 831 days ago
5
Product seems to filter the air very well.
William G. 851 days ago
5
The right product at a much lower price than locally
Sean M. 861 days ago
5
Excellent for the price
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