• 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.

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We don't know what's in your water,
but we know there's nothing in your cart.

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19.75x21.5x1 AIRx ALLERGY Air Filter, 4-Pack

5
72 reviews
◆
 
Average rating 4.9/5
5 stars
(62)
4 stars
(10)
3 stars
(0)
2 stars
(0)
1 star
(0)
AIRx 19.75x21.5x1-ALLERGYOur#: 194812
Made in USA
19.75x21.5x1 AIRx ALLERGY Air Filter, 4-Pack
19.75x21.5x1 AIRx ALLERGY Air Filter, 4-Pack
19.75x21.5x1 AIRx ALLERGY Air Filter, 4-Pack
19.75x21.5x1 AIRx ALLERGY Air Filter, 4-Pack
19.75x21.5x1 AIRx ALLERGY Air Filter, 4-Pack
19.75x21.5x1 AIRx ALLERGY Air Filter, 4-Pack
19.75x21.5x1 AIRx ALLERGY Air Filter, 4-Pack
19.75x21.5x1 AIRx ALLERGY Air Filter, 4-Pack
19.75x21.5x1 AIRx ALLERGY Air Filter, 4-Pack
19.75x21.5x1 AIRx ALLERGY Air Filter, 4-Pack
19.75x21.5x1 AIRx ALLERGY Air Filter, 4-Pack
19.75x21.5x1 AIRx ALLERGY 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 promote superior air quality in your home, this is the air filter for you! The specialized media in the filter attracts and captures small particles that can cause allergies. We carry your size of air conditioner filter or furnace filter. We offer convenient online ordering and quick shipping right to your door!
Pleated media provides extended surface area for filtration, and low resistance to airflow
MERV 11 rating means the filter attracts household allergens like dust, pollen, mold spores, dander, smoke and smog
Replace every 90 days under normal use
Made with pride in the USA
100% free returns on all filters

$79.18

$98.98
Code DF20 · Save 20%
$19.80 per filter
Code DF20 · Save 20%
SAVE 0% 4-pack
In Stock, Ships onThursday, Oct. 1st
Only $70.00 more for free shipping! Add this — just more for 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
19 ¾ × 21 ½ × 1"
Actual Size
19 ¾ × 21 ½ × ⅞"
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

Replaces These Filter

Bryant / Carrier

KFAFK0312LRG

Carrier

FIP417621

National Filter Sales

PF-02-19.75x21.5x01-6

About This Product

Is this the right air filter for you?

If you want to promote superior air quality in your home, this is the air filter for you!   The specialized media in the filter attracts and captures small particles that can cause allergies.   We carry your size of air conditioner filter or furnace filter.  We offer convenient online ordering and quick shipping right to your door!

  • Pleated media provides extended surface area for filtration, and low resistance to airflow
  • MERV 11 rating means the filter attracts household allergens like dust, pollen, mold spores, dander, smoke and smog
  • Replace every 90 days under normal use
  • Made with pride in the USA
  • 100% free returns on all filters

Customer Reviews

4.9 4.9 out of 5 stars
72 verified reviews
5★
(62)
4★
(10)
3★
(0)
2★
(0)
1★
(0)
5
4.9 / 5 (72)
RENEE R. 474 days ago
5
Product is excellent pricing is excellent too
Sunee N. 491 days ago
5
It’s very good make me get fresh air in my house
Lorraine C. 522 days ago
5
It’s fine.
Carol C. 704 days ago
5
Second time I have ordered a multi-pack since getting this unit. Wonderful product.
Mark S. 772 days ago
5
Thank you for such great service
Larry 869 days ago
5
Looks like good quality and fits perfect.
Janene D. 970 days ago
5
Works great with my Carrier A/C
John H. 1024 days ago
5
As expected
Betty H. 1069 days ago
5
Arrived quickly. They look great.
Mark H. 1154 days ago
5
As good as anything at hardware box stores for less.
Bob C. 1158 days ago
5
Just what I wanted
Thomas D. 1163 days ago
5
Fits perfectly.
Lynette P. 1561 days ago
5
Have been a return customer for many years.
William 1765 days ago
5
perfect fit, fast shipping, good price if you buy in bulk
RICHARD S. 1793 days ago
5
Works good and as advertised.
Lawrence L. 1838 days ago
5
Very professional customer service
Paul S. 1871 days ago
5
Works well and fits well
Vickie S. 1912 days ago
4
these are good filters just a little expensive
Jack B. 1913 days ago
5
Easy. Quick. And reasonable
Lawrence n. 2005 days ago
5
Excellent product
Wanda E. 2027 days ago
5
This company has great customer service. They replaced my order no charge
Alice K. 2028 days ago
5
The filters arrived promptly and the quality is good.
WILLIAM F. 2032 days ago
5
Fits well works great and fairly priced
Luther E. 2191 days ago
5
I've been ordering these filters online for about 4 years. Keep the information attached to the last filter in the batch so reordering is easy. They have always arrived quickly, undamaged, and exactly as ordered. I save the discount coupon and look to see if there is one for a better deal before the next order.
Edward G. 2214 days ago
5
Having dogs it keeps the pet dander at bay. We have been using for years.
Alan 2244 days ago
4
Delivered in box that a was not bashed in. I haven't used them yet as I have 2 left.
Irene 2255 days ago
5
We have been buying filters from this company for 2 homes. Refrigerator & air conditioners & always are happy with their products, service & prices.
Raymond F. 2317 days ago
4
The filters were well packaged so as to prevent damage in shipment. The filters themselves are well made and seem to work as expected.
ALFONSO F. 2373 days ago
5
these filters are great using them for 2 years easy to order on line.
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