18x20x1 AIRx DUST Air Filter, 12-Pack product image

18x20x1 AIRx DUST Air Filter, 12-Pack

Model: 18x20x1-DUST / Part: #181412

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5 stars

(23)

4 stars

(1)

3 stars

(2)

2 stars

(0)

1 star

(1)

Free Returns
100% Compatibility Guarantee

Enjoy a cleaner home with less work

Reduces dust, lint, dust mites, pollen
Will help keep your HVAC system clean
Maintains superior airflow
Creates cleaner indoor air

TOTAL $106.93 ( 12 Pack for $0.00 each )

In Stock

2025-08-25

6 Pack -

$55.99

$9.33 each

12 Pack -

$106.93

$8.91 each

FREQUENTLY BOUGHT TOGETHER

Description
Reviews

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

What does this air filter remove?

Do you want to know about the technical specs?

Nominal Dimensions	18 x 20 x 1"
Actual Dimensions	17.5 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 (27)

Robert Marriott 13 days ago

These filters are a good value . They arrived promptly and were in excellent condition. We will shop this vendor again.

Cathy Morgan 24 days ago

They are very good , price good. I will continue ordering

Erica Ray 27 days ago

Love the product! Great price

Bobbie Sena 3 days ago

I have continuously very pleased with your product, your courtesey, and your efficiency.

Dale S Long 16 days ago

Happy, thank you for your service..... Dale

Morris Boner 22 days ago

YES VERY GOOD

Linda 30 days ago

Reasonably priced. Quick delivery of product

Lynn Turner 6 days ago

Good quality. Good service. Order came very quickly. Packaged so there’s little chance of damage.

Steve Williams 2 days ago

nice product and good service

james m. hastings 7 days ago

I was surprised to receive the order in two boxes arriving on different days. Once I opened each box I saw that there were six filters in each box. All is well and thank you for your follow up survey.

Deborah Johnson 24 days ago

its hard to get this size at local hardware stores. always available at this site

Gene Wayne Isaacson 8 days ago

Great filter for a great price.

Tom Golden 15 days ago

After moving into a new condo, I discovered that the size HVAC filters that I needed were not available in local home improvement stores. I found Discount Filters on-line. They had the filters that I needed and they were reasonably priced (and included free shipping).

Bob Chandler 19 days ago

Great filter, been using them for 3 years in my condo. I change them every 28-30 days. Amazing how much dust and animal hair is filtered out.

Arif Cruz 27 days ago

I have purchased this for 5 years they good and the price right, I believe they are rated for 3 months but I change them every month, for some reason if I let it for 3 months the a/c will start to freeze up, this Merv 8. has worked for me fine.

lester cohen 8 days ago

ordering was easy, sent out right after ordering, and tracking easy.

Eddie 23 days ago

Since my AC unit is close the the entrance of the house I need to replace about every month instead of every 3 months. These filters for the money are a great value and it is not a big cost to change monthly.

Patrick 11 days ago

Well made in the USA and good customer service.

Don Auer 21 days ago

Very pleased

Mariann Parker 28 days ago

They do the job!

Richard Keith 10 days ago

My ducts are noisy when I use these filters.

Anthony 19 days ago

works well in my condo

Robert Farrell 3 days ago

well priced, great quality, shipped quickly

Rosemary M Roberti 14 days ago

great product/price. website is to find what I needed

Bobbie Sena 26 days ago

I love the great filters at a good price.

RICHARD Demers 21 days ago

Quality is good, delivery was on time, will de reordering again and I will let my friend’s know Thanks

Enjoy a cleaner home with less work

Reduces dust, lint, dust mites, pollen
Will help keep your HVAC system clean
Maintains superior airflow
Creates cleaner indoor air

Replaces These Filters:

National Filter Sales:	PF-01-182001-6