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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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14x25x1 AIRx DUST Air Filter, 4-Pack

5
238 reviews
◆
 
Average rating 4.8/5
5 stars
(209)
4 stars
(19)
3 stars
(6)
2 stars
(0)
1 star
(4)
AIRx 14x25x1-DUSTOur#: 193882
Made in USA
14x25x1 AIRx DUST Air Filter, 4-Pack
14x25x1 AIRx DUST Air Filter, 4-Pack
14x25x1 AIRx DUST Air Filter, 4-Pack
14x25x1 AIRx DUST Air Filter, 4-Pack
14x25x1 AIRx DUST Air Filter, 4-Pack
14x25x1 AIRx DUST Air Filter, 4-Pack
14x25x1 AIRx DUST Air Filter, 4-Pack
14x25x1 AIRx DUST 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

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

$54.95

$68.69
Code DF20 · Save 20%
$13.74 per filter
Code DF20 · Save 20%
SAVE 45% 4-pack

Pack Size

Filtration Level

Compare all →
In Stock, Ships onWednesday, Sep. 30th
$70.00 more gets you free shipping! This puts you within of 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
14 × 25 × 1"
Actual Size
13 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) 359 538 717 896 717 * * 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)
359 0.07
538 0.11
717 0.17
896 0.23
717 * 0.17 *
* Max Rated Airflow

Replaces These Filter

National Filter Sales

PF-01-142501-6

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
238 verified reviews
5★
(209)
4★
(19)
3★
(6)
2★
(0)
1★
(4)
5
4.8 / 5 (238)
Fred M. 45 days ago
5
Great Product!
Suzanne M. 143 days ago
5
Excellent product and love the convenience of online ordering.
Customer 266 days ago
5
These are Always dependable filters for a fair price and fast delivery
Mike C. 603 days ago
4
It's a fucking dust filter of the size ordered Put your big boy pants on and do the fucking job without the constant ego stroking.
Bruce K. 649 days ago
5
Good product good company thank you
MARY E. 759 days ago
5
I love this company, great quality and super fast delivery.
Mark P. 762 days ago
5
I have used this product for the 15+ years for my air conditioning system, and have never had a problem. They are the perfect fix I need and an excellent product!
Sue J. 766 days ago
5
Great product, good value, efficient service!
Bruce K. 831 days ago
5
Just put the first filter in that I got seems to be very good quality. There was some foreign strings in the filter itself, but just picked them out so far pretty happy with the product.
John 894 days ago
5
Quality product. Service excellent
Nancy H. 958 days ago
5
Easy to install and is durable. Like that it is easily delivered.
John 1064 days ago
5
Perfect for me.
David M. 1066 days ago
4
OK filters at a good price. Delivered in a timely fashion.
raindove14 1154 days ago
5
My HVAC company, whom I trust, recommended Discount Filters. Comparison of cost vs.a big box and/or home improvement store was good. I will probably buy both items again but give it a better lead/need time. The delivery dates were not critical, but if it was an item I needed asap it would have been a problem. The response from an email to Discount Filters was excellent.
Josh 1172 days ago
5
Good quality product that is fairly priced (but not inexpensive) for the quality. Delivery is generally prompt. I've been a customer for some time. Sales discounts from time to time are a good opportunity to buy in quantity. Your A/C unit works more efficiently and costs less to operate with a clean filter.
David F. 1313 days ago
5
We like them.
Dorothy A. 1408 days ago
5
This was my mistake on size and Discount Filters replaced them with the correct filter so fast. The customer service for this company, since I am a senior citizen, brought the art of being nice to people out again. I would recommend this company to everybody!
Scarlett 1461 days ago
5
I always get my filters from Discount Filters. Great price and fast customer service.
Marcella C. 1544 days ago
5
Great quality and price!
Scarlett 1661 days ago
5
These filters are well made and a perfect fit every time.
Matthew G. 1674 days ago
5
Excellent product
Laura G. 1677 days ago
5
Great Product
michael e. 1701 days ago
5
Seems to meet requirements, will have to see how long these filters last,
Richard H. 1724 days ago
5
Good fit in my furnace
RH 1739 days ago
5
Always good service and prices!
mcleod s. 1767 days ago
5
product arrived in a timely manner and they were the rite size.
Laura G. 1843 days ago
5
Nice filters and work great
Emma K. 1847 days ago
5
Came fast. And it is what it said it was
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