Shop All Savings
Appliances
Bath & Faucets
Blinds & Window Treatment
Building Materials
Lumber & Composites
Cleaning
Decor & Furniture
Lighting & Ceiling Fans
Doors & Windows
Electrical
Flooring & Area Rugs
Hardware
Heating & Cooling
Kitchen & Kitchenware
Lawn & Garden
Outdoor Living & Patio
Paint
Plumbing
Seasonal Decor
Smart Home
Storage & Organization
Tools
Automotive
Furniture
Gift Cards
Credit Cards
View All Home Services
Tool Rental
Benefits & Services For the Pro
Project Calculators
View All DIY Projects
Local Ad
Store Finder
Site Map
#1 Home Improvement Retailer
Select store
...
...
Cart
Select store
...
...
Shop All
Services
DIY
Me
Cart
Home
/
Heating, Venting & Cooling
/
Air Filters
12x18 Air Filters
1 Results
Air Filter Size: 12x18
Contaminants Captured: Allergens
Clear All
Sort by:
Top Sellers
Top Sellers
Most Popular
Price Low to High
Price High to Low
Top Rated Products
Get It Fast
In Stock at Store Today
Availability
Show Unavailable Products
Department
Heating, Venting & Cooling
Air Filters
Air Filter Size
8x20
9 1/2x9 1/2
9x5
10x20
10x10
10x24
10x30
12x20
12x12
12x24
12x30
12x25
12x10
12x18
12x36
14x24
14x14
14x20
14x25
14x30
14x18
14 1/10x13 9/10
15x20
16x25
16x20
16x24
16x30
16x16
16x28
17 1/2 x29 1/2
17 1/2 x17 1/2
17 1/2 x23 1/2
18x24
18x20
18x18
18x30
18x25
18x36
20x25
20x20
20x30
20x24
20x36
21x21
21x26
22x22
23 1/2x23 1/2
24x30
24x24
25x25
31x28
+ View All
More Options Available
$
18
.
97
Buy
4
or more
$9.49
(5662)
HDX
12 in. x 18 in. x 1 in. Superior Pleated Air Filter FPR 9, MERV 12
Add to Cart
Compare
Installation Services
HVAC Maintenance
A seasonal heating or cooling tune-up can identify potential issues and comes with our 6-month "No Breakdown Guarantee."
Learn More