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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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25x25x1 AIRx DUST Air Filter

AIRx 25x25x1-DUSTOur#: 195093
Made in USA
25x25x1 AIRx DUST Air Filter
25x25x1 AIRx DUST Air Filter
25x25x1 AIRx DUST Air Filter
25x25x1 AIRx DUST Air Filter
25x25x1 AIRx DUST Air Filter
25x25x1 AIRx DUST Air Filter
25x25x1 AIRx DUST Air Filter
25x25x1 AIRx DUST Air Filter
25x25x1 AIRx DUST Air Filter
25x25x1 AIRx DUST Air Filter
25x25x1 AIRx DUST Air Filter
25x25x1 AIRx DUST 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

If you want to protect your HVAC system, keep your house a little cleaner, and remove a few nuisance particles from the air you breathe then yes, this is the filter for you! Not everyone needs to get rid of odors, and not everyone is overly sensitive to allergens and other, more harmful, particulates in their air. We make shopping for air conditioner filters and furnace filters easy!
Entry-level pleated air filter offers improved filtration over common fiberglass filters
MERV 8 rating means the filter attracts common large household allergens like dust, pollen, and mold spores
Replace every 90 days under normal use
Made with pride in the USA
100% free returns on all filters

$24.95

$31.19
Code DF20 · Save 20%
$24.95 per filter
Code DF20 · Save 20%
SAVE 11% 1-pack

Pack Size

Filtration Level

Compare all →
In Stock, Ships onMonday, Oct. 5th
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!

Compare Side-by-Side

MERV Filter Comparison

Choose the filtration level that fits your home — then tap Select to update your cart above.

MERV 8
Standard
DUST
RECOMMENDED
MERV 11
Superior
ALLERGY
OPTIMAL
MERV 13
Optimal
HEALTH
Best For
STANDARD
Residential / Commercial
Healthy Families
SUPERIOR
Residential / Commercial
Allergy Sufferers
OPTIMAL
Residential / Commercial
Premium Protection
Comparable
Ratings		 MPR 600 & FPR 5 MPR 1000–1200 & FPR 7 MPR 1500–1900 & FPR 10
Filtration Captures ≥90% of large particles Captures ≥95% of large particles Captures ≥98% of large particles
Dust, Lint & Debris
Mold, Pollen
Dander, Dust Mites
Smoke & Smog
Bacteria
Odor, VOCs
Your
Filter
MERV 8
Standard
DUST
Best For Residential / Commercial, Healthy Families
Comparable MPR 600 & FPR 5
Filtration Captures ≥90% of large particles
Dust, Lint & Debris
Mold, Pollen
Dander, Dust Mites
Smoke & Smog
Bacteria
Odor, VOCs
RECOMMENDED
MERV 11
Superior
ALLERGY
Best For Residential / Commercial, Allergy Sufferers
Comparable MPR 1000–1200 & FPR 7
Filtration Captures ≥95% of large particles
Dust, Lint & Debris
Mold, Pollen
Dander, Dust Mites
Smoke & Smog
Bacteria
Odor, VOCs
OPTIMAL
MERV 13
Optimal
HEALTH
Best For Residential / Commercial, Premium Protection
Comparable MPR 1500–1900 & FPR 10
Filtration Captures ≥98% of large particles
Dust, Lint & Debris
Mold, Pollen
Dander, Dust Mites
Smoke & Smog
Bacteria
Odor, VOCs

Swipe or use arrows · tap to select

MERV (Minimum Efficiency Reporting Value) is an ASHRAE industry standard for measuring air filter efficiency.

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
25 × 25 × 1"
Actual Size
24 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
0.18" 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) 640 960 1280 1600 1280 * * Max Rated Airflow
8 17 50 70 Initial Resistance (IWC) 0.07 0.11 0.17 0.23 0.17 *
MERV
8
(µm) PSE (%)
0.3-1.0 17
1.0-3.0 50
3.0-10 70
Airflow Rate (CFM) Initial Resistance (IWC)
640 0.07
960 0.11
1280 0.17
1600 0.23
1280 * 0.17 *
* Max Rated Airflow

Replaces These Filters

National Filter Sales

PF-01-252501-6

About This Product

Is this the right air filter for you?

If you want to protect your HVAC system, keep your house a little cleaner, and remove a few nuisance particles from the air you breathe then yes, this is the filter for you!  Not everyone needs to get rid of odors, and not everyone is overly sensitive to allergens and other, more harmful, particulates in their air.  We make shopping for air conditioner filters and furnace filters easy!

  • Entry-level pleated air filter offers improved filtration over common fiberglass filters
  • MERV 8 rating means the filter attracts common large household allergens like dust, pollen, and mold spores
  • Replace every 90 days under normal use
  • Made with pride in the USA
  • 100% free returns on all filters

Customer Reviews

4.8 4.8 out of 5 stars
49 verified reviews
5★
(43)
4★
(4)
3★
(1)
2★
(1)
1★
(0)
5
4.8 / 5 (49)
Beverly 145 days ago
5
Great value!
Pearson L. 837 days ago
5
Good filters
Rex 961 days ago
5
Just as advertised.
Bill H. 1017 days ago
5
Right filter. Best price. Great service
Terry G. 1157 days ago
5
Company easy to work with - I've been using their products for 15 years. Order process is very easy. A very good website - easy to navigate.
Lee H. 1302 days ago
5
seems to work well
Lorraine R. 1609 days ago
5
these fit with ease and delivery was fast and easy/ thanks
Betty B. 1656 days ago
5
Works great. Reasonably priced. Easy to order and delivery is timely and reliable. I’ve been ordering from you folks for a number of years and will continue to do so. Also my unit requires 25 X 25x1 filters and they are not easy to find.
Joycelyn 1749 days ago
5
The Customer Care, Kindness and Expertise Is Superb! This Company makes you feel like you are a VERY Important Part pf their success. THANK YOU Deann for Your Care - You are greatly appreciated!
Kelley S. 1756 days ago
5
Great product, came as described
DAVID F. 1915 days ago
5
The box was damaged in shipment, They sent me another box
david w. 2252 days ago
5
Good middle of the road filters. Do the job at a fair price
DWAYNE H. 2431 days ago
5
We have used filters for 3 years and no problems.
Sharon 2438 days ago
5
This is a good product. A 25" X 25" X 1" filter is hard to find. We were lucky to find it at Discount Filters. Thanks for fast service.
Sharlie E. 2588 days ago
5
You are the only place I can get this filter. Thank you
Debbie D. 2675 days ago
4
I didn't give the filters a 5 star because I ordered 25 X 25 and they are just under that as they are not fitting snug like my previous filters.
Lynn 2863 days ago
5
I am sure the filters will work out well! I have not used them as yet! I ordered these to have for the winter months! The price seemed reasonable!
Laura w. 2907 days ago
5
Just what we wanted.. good price ,good filters!
Joseph T. 2928 days ago
5
These are good filters at a reasonable price. Glad to find these since 25x25x1 are a little hard to locate
PLFC 3087 days ago
5
Good product for the price, to purchase at a store is quite a bit more.
Jim C. 3167 days ago
5
This type of filter is the best for your furnace.pfurnace. Prompt ordering and deliver.
Scarlett 3540 days ago
5
The best customer service online is Discount Filters.
CHRIS S. 3713 days ago
5
Great products and great service!
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