20x20x1 AIRx ALLERGY Air Filter, 4-Pack product image

20x20x1 AIRx ALLERGY Air Filter, 4-Pack

Model: 20x20x1-ALLERGY / Part: #193877

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5 stars

(191)

4 stars

(33)

3 stars

(7)

2 stars

(1)

1 star

(4)

Free Returns
100% Compatibility Guarantee

Reduce common allergy symptoms

Reduces allergy irritating particles
Captures allergens like dust, mold spores, pet dander, dust mite debris and more
Lessens odors from car fumes & smog
Creates cleaner indoor air

TOTAL $75.35 ( 4 Pack for $0.00 each )

In Stock

2026-04-06

4 Pack -

$75.35

$18.84 each

6 Pack -

$89.62

$14.94 each

12 Pack -

$163.64

$13.64 each

FREQUENTLY BOUGHT TOGETHER

Description
Reviews

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

What does this air filter remove?

Do you want to know about the technical specs?

Nominal Dimensions	20 x 20 x 1"
Actual Dimensions	19.5 x 19.5 x 0.75"
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.

Reviews

4.7 / 5 (236)

Catherine Clifton 1 day ago

The ease of use.

John Booth 3 days ago

It works fine.

Steve Curatolo 19 days ago

I have used these filters for a while. Good product & reasonable prices!

Peter R Jacobs 2 days ago

High quality air filters and shipped quickly.

Austin Detwiler 7 days ago

filters are well constructed and I have used these filters in a residential a/c system which runs 24/7 during the south Florida cooling season (which has turned into about 10 months this year). filters were shipped promptly and well packaged- no damage noted during shipping. highly recommended product and company!

Teresa Nix 14 days ago

I always get my filters here. There's a good variety and I trust the product.

Ronald Reagan 7 days ago

Product performs as expected. Good price /value.

Jerome Hoover 18 days ago

They are great.

Douglas McNeil 2 days ago

Seems to filter some allergens as claimed. Wife and I seem to have less allergy symptoms when installed, as opposed to less capable filters.

Miclene McGhee 23 days ago

I believe the quality and value are very good. I never have to wait, shipping is immediate. Thank you.

Eileen Guenther 14 days ago

Very efficient

mikesuraci 20 days ago

they do a good job of filtering odors

Pc 10 days ago

Quality filters at a good price!!

ARANZO MILBOURNE 25 days ago

excellent product, excellent service, and excellent price

Jeane Erbe 10 days ago

I was satisfied with the product.

Rachel inez galley 8 days ago

As good as the original brand

Jackie Dukes-Strey 12 days ago

Love that I can order enough filters for a year at such a great price. Don't have to worry about buying new filters every time I have to change them! Quality products & quality service -- who could ask for an easier, less expensive way to be sure my HVAC is treated properly??

mike scans 2 days ago

Work great, have used them for years. The appear to keep the air and the rest of the house clean. Nothing is cheap these days but the price is reasonable.

Carl Burgamy 13 days ago

Well constructed and delivered in a timely manor. I have purchased these for quite a while and I am pleased with the performance,

Jenny Upton 28 days ago

I will always buy these filters as long as they are available.

Latrell Simmons 21 days ago

Your customer service is like no other company that I have experienced before! 6??’s

Scott A. 27 days ago

Absolutely perfect for the price, we worth the investment. These filters hold up well for the whole timeframe in between changes.

Glenn Bamlet 16 days ago

Love them. Price

Paul J Rossiter 24 days ago

Quality product but a bit pricy

Charles Butler 20 days ago

Great filtration

Kenneth Mosteller 18 days ago

It was a replacement for another air filter that I had been using.

Luana Henry 29 days ago

I think the filters are top quality for a fair price. I like rounding up the purchase for the "No Kid Hungry Program".

Stanley Mamak 8 days ago

Great price. Delivered to my door

Ozzie Black 15 days ago

I am competely satisfied with this filter and the price and the price is competitive.

Kenneth Fisher 22 days ago

Good service

Mary Goad 14 days ago

USA made! Awesome quality! Great price and quick shipping.

Bill Fulton 21 days ago

Reported damage of 2 filters in my order of 6. Customer service was excellent and the 2 were replaced very quickly. Will definitely reorder when needed. Thanks

customer 24 days ago

Good price. Product quality appears good. Not used the ones ordered yet.

John Griffith 24 days ago

Good filters

Richard Claburn 27 days ago

Product was delivered fast and the reminders to change and reorder is very helpful.

Michael Emmons 15 days ago

Exactly what I needed and timely delivery

Eric A Blocher 0 day ago

Good value.

Sandra Mosolgo 7 days ago

Good product, prompt delivery

Ruthy Wayne 6 days ago

Goid price, haven't installed them yet.

Tom Schleusner 6 days ago

Super fast shipping. Thanks

Cyndi Warden 18 days ago

good product, good price

Douglas McNeil 23 days ago

Ordering and delivery were fine. hard to rate filters since I just put them in.

John Griffith 1 day ago

Works as advertised. Can’t ask for more.

Barbara Beall 3 days ago

Seems to be a great value over buying in stores.

Burhman Gates 10 days ago

Easy to identify correct filter size. Not as easy to select filter particle size. Prompt shipping and speedy delivery.

Wayne Benton 26 days ago

just as described

Grandma Crys 30 days ago

quick service and good quality filters.

L Wootton 1 day ago

Filters came when promised, and in good condition.

Dave Johnston 21 days ago

Good product and a good price.

Klaus Birk 19 days ago

installed merv 8 filter recently , will be installing merv 11 in aprox 60 days

Judy Sebree 30 days ago

So easy to order and received our order within a week. Quality of filters and price is great. We will be getting our furnace filters and water filters from Discount Filters and will recommend to friends

Richard Claburn 15 days ago

Was delivered in timely manner and installed very well fit opening as described. Much better than filters purchased from unit manufacturers company.

Guest 18 days ago

Excellent product and fast shipping

Joe Augustine 19 days ago

Second purchase of this product. Serves my purpose and reasonably priced after discount was applied.

mike scans 29 days ago

Been using your products for years, This AC filter keeps out pollen, animal dander and other small particulate. It shows in the house with little to no marking off the ceiling with dark streaks that i had before using your merv 11 filter. I live in Florida and the AC runs almost constantly. even with that use I see 2 months per filter. Thanks for a great product.

Colt 16 days ago

Haven't installed any yet but the quality looks good

Joseph P. Marchia 23 days ago

Product Is great and happy with quick delivery

Gregg Goza 28 days ago

Great filters! We will definitely reorder!

Vance McCrumb 20 days ago

Highly recommend this filter. It reduced the dust in our home. Does a great job. I'm not allergic to anything so I can't comment on how well it helps those that are.

Sabina Ramos 0 day ago

Delivery was good time

Robert Beavers 7 days ago

we use to get a free one from ac people but now they are charging for them so this way better

brian cox 14 days ago

Two of my kids have bad allergies, these are the best filters I have bought!

DAT 19 days ago

This is my 2nd order from Discount Filters and this will be the only place we buy air filters from going forward. The cost per filter is below what I pay at the big box home improvement stores, and for a higher rated filter. The quality of the filters themselves (beyond the filtration rating) is excellent, and the convenience of buying in bulk at a lower cost - delivered to my door - is great!

Stanley Mamak 22 days ago

Good filter. Good price

Linda Beasley 10 days ago

Very good for the money

Michael Gleaton 28 days ago

A quality air filter. We have used them now for 4 years and are very pleased with how they perform.

Joe Augustine 12 days ago

The filters serve my purpose and the discount provided made the cost more reasonable.

Gil Irvin 29 days ago

Not the most expensive nor the highest filtration but, performance is good for my needs. Price is OK and it is convenient to have them delivered.

Debbie Booth 19 days ago

Its my 3rd purchase and will continue to by from them for great service and quality filters

James Davey 21 days ago

It was everything that they said it would be at a good price.

Prince Willis 27 days ago

Quick delivery. High quality product

Michael Fedora 28 days ago

The product works well the price is good and the service was very good

Joanne Sorenson 9 days ago

My husband has terrible seasonal allergies....these filters are awesome!!! Thank you!

Janet Gode 17 days ago

Product is great. shipping is terrible. Fed ex took shipment then gave it to Postal service. No delivery to my house.

James Young 4 days ago

Good fit and arrived quickly. No damage to the product from shipping.

Linda Smart 13 days ago

Great value for great filters!

Mauel Cortina 16 days ago

They look like they are good filters, but I have not installed one yet.

Ken Storms 18 days ago

Helps my wife breathe easier. A great product.

michael jankowsky 22 days ago

Great filter for the price. We have 2 dogs and these work great.

Ronald Sanders 9 days ago

Seems to be of good quality, and a perfect fit.

Perry 29 days ago

Compares to more expensive brands at a better price. Easy order and delivery

Ronald Reagan 1 day ago

Very satisfied with this product

Carmen Villani 8 days ago

Awesome product and Excellent Customer Service

David Miller 20 days ago

Good product at reasonable price.

Wendell Welch 25 days ago

You get what you pay for, good quality filter that works great!

Bolt 30 days ago

These filters have made a noticeable difference in the amount of dust in my home. Please note these are only 3/4 inch and not 1 inch. Every time the AC clicks on you hear the filter being sucked up. And then down when the AC turns off. Very annoying so I bunched up some blue painters tape and shoved it between the filter and frame.

Gail Riggs 2 days ago

Filters work great! Buying these on line saves time and money. No worries about remembering size or number. It’s all saved and makes it easy to reorder.

Beverly Jackson 6 days ago

This filter works for home and easy to install.

Steve Haddox 28 days ago

They work perfectly. That's why I'm a repeat customer.

Joseph Rutherford 29 days ago

Great filters, my ac tech commented how clean the coils were.

Billy Truong 13 days ago

Good quality, and I’m glad I can order it online don’t have to go to the store for it

customerDuck 10 days ago

Does what it is supposed to do.

Rex 21 days ago

I definitely got a higher level of filtration for less money than I have been paying from other sources.

David 29 days ago

Great product at a great value with free shipping

Miclene McGhee 7 days ago

Appears to be a good product. Not sure how to rate a furnace filter. Good fit. Company keeps customer informed when its time to stock up again. Prices reasonable. Immediate ship.

Hershell Sandlin 12 days ago

The company stands by their products and will make every effort to satisfy their customers.

Meshot Marianne 27 days ago

Quality product which was delivered in a timely manner. The discount code is an added plus. Comparable to name brand products in material and workmanship

P Price 16 days ago

filters are always good . have no problem with any of the filters

nancy marret 22 days ago

Great product, price and delivery!!! Couldn’t asked for anything more!!!

Walter D Bates 29 days ago

This item does exactly what I wanted it to do. I live in an older home, in an agriculture area with lots of dust. I use 20" box fans in every room and the basement to circulate and filter the air. These filters fit the back of the fans just right and trap most all dust and particulates, although I am going to start using the MERV 13 HEPA filters for the bedrooms and living area .

AMERICO A. FUSCO 29 days ago

We have changed our filters yet, but if these filters work as well as the furnace filters we purchased from Discount Filters, we will be highly satisfied. Plus your prices are reasonable as compared to other companies. The stars are based on our satisfaction with the furnace filters.

Sherry Boris 9 days ago

I have been buying from DiscountFilters for several years. Their product and prices are excellent. I use a Merv 11 Allergy Filter in my new furnace and love the results. The 3 month reminder is very helpful too. I just purchased 6 filters that will last me about 18 months. Shipping is always free and fast. Highly recommend DiscountFilters for all your filter needs.

Elwood C Lewis 14 days ago

Outstanding fit and what I expected. I will be ordering again in about 18 months.

Robert Dall 15 days ago

best price and great service ,i found my new supplier

WILLIAM J BLEVINS 10 days ago

Great, will order again. Cant beat.

NELSON 29 days ago

I purchased this Item cause 1, made in USA 2, I've heard good things about this Co., and 3 prices are fair. Too soon to tell how well they will perform. I'm optimistic, I feel I made the right choice.

Donnie Schmidt 25 days ago

Excellent filters. Traps dust, pet hair. Furniture gets less dusty since using these filters

Jay Ford 0 day ago

They seem to be doing a good job so far. Also happy with the price I paid for them.

jim Glover Glover 2 days ago

doees what it was designed to do

DANIEL A OSTROY 29 days ago

Excellent filtering and a great company. Thanks.

Kathy Corson 20 days ago

I am pleased with the a/c filter. It works as well as the much higher priced filters I have been buying.

John G Schickler 24 days ago

With 3 dogs running around, the house gets a lot of dust and dander. These filters take so much of it out of the air.

Carol Dahlstrom 26 days ago

Product arrived in a timely manner. I have ordered from this company for some time, and I have to say they stand behind their products. I made a call about how to clean a reusable filter. After explaining my situation, the rep said he was refunding my money, just like that! To me, that is a sign of a great company. Very happy with their products.

shirley kennedy 3 days ago

I was paying $20 each at my local store for this same type filter. They arrived in perfect condition from Discount Filters and I was so satisfied with them I ordered another 6-pack. Looks like I can go 3 months before changing again. Shirley K

Dennis Greer 22 days ago

Ordered a 6 pack of air filters and received them 10 days later. They seem ro be similar in quality to the ones I have been using and paying more than twice as much for. I guess there's no way to really know how effective air filters are, but the quality seems good and the ordering process was simple and the shipping time was reasonable. Satisfied so far.

Elizabeth Kloker 11 days ago

Great filters at good prices!

john r cooper 12 days ago

good fit and works the way it should

Ronald Fenstermacher 8 days ago

Good product for the price.

sal cutrone 11 days ago

The filters speak for them selves.

Victor Mudryk 6 days ago

They keep the air really clean for a lot less money then the original equipment

Grumpy 3 days ago

These are great filters. They are easily the equal or better than any you can get at your local hardware store. And they're cheaper too! Highly recommend.

MargeL 15 days ago

great product living in a climate that the AC is going all the time this is a great filter

D Barker 21 days ago

Good product! Reasonable price!

Michael Gleaton 10 days ago

Quality filters at half the price in the big box stores!

Ali Shokouhi 16 days ago

It took a bit longer than what I was expecting, but it was pretty much on the delivery window.

Barry Ephraim 18 days ago

good value and promptly shipping with tracking. will purchase again as needed

KEN NGUYEN 8 days ago

GREAT PRODUCTS AND SERVICE.WILL BUY AGAIN IN THE FUTURE.

Melba J Miller 13 days ago

This makes the second order I have made of this size product. The prices are excellent especially for a size difficult to find in my area. The filter works very well and shipping is very fast. I also enjoy the email reminders to change the filter.

Patricia A. Baumberger 15 days ago

Great filters. Liked that I could buy several at a time - fast shipping. Very satisfied with the product.

Luis Robainas 17 days ago

i am a frequent customer and the product that i order and receive is excellent including the prompt shipping... keep up the excellent work

sidney lefler 19 days ago

great filters,they really work.

Allyson Ruiz 8 days ago

Product came well packed and just as advertised. Easy to install. Will order again from this website.

Reduce common allergy symptoms

Reduces allergy irritating particles
Captures allergens like dust, mold spores, pet dander, dust mite debris and more
Lessens odors from car fumes & smog
Creates cleaner indoor air

Replaces These Filters:

National Filter Sales:	PF-02-202001-6

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FREQUENTLY BOUGHT TOGETHER

20x20x1 AIRx DUST Air Filter, 6-Pack

20x20x1 AIRx HEALTH Air Filter, 6-Pack

20x20x1 AIRx ODOR Air Filter - Carbon, 6-Pack

FilterLOCK Furnace and Air Conditioning Filter Seal

Is this the right air filter for you?

What does this air filter remove?

Do you want to know about the technical specs?

Reviews

Replaces These Filters:

No Instructions Yet.