Javascript is disabled on your browser.
To view this site, you must enable JavaScript or upgrade to a JavaScript-capable browser.
Request a Quote
Quick Order
Login
Register
0
Your cart is empty
Products
Air Filters
MERV 2, Fiberglass Air Filter
Merv 4, Polyester Air Filter
Merv 10, Pleated Air Filter
Merv 10, High Capacity Pleated Air Filter
Merv 11, Pleated Air Filter
Merv 13, Pleated Air Filter
Carbon Pleated Air Filter
Ring Panels & Ring Links
Air Filter Media Rolls
Mini-Pleat Air Filters
Pocket Polyester Bag Filter
Rigid Box Filters
ASHRAE Cell Filter
V-Bank Air Filters
HEPA Filters
Metal Mesh Filters
V-Belts
3L V-Belt
3VX V-Belt
5VX V-Belt
A/4L V-Belt
AX V-Belt
B/5L V-Belt
BX V-Belt
C/CX V-Belt
Chemicals & Cleaners
Glycols
Coil Cleaners
Specialty Cleaning Products
Total System Protection
Indoor Air Quality
Shop by Brand
Amana
Aprilaire
Carrier
Cimatec AirScreen
GeneralAire
Goodman
Honeywell
Lennox
Sanyo
Skuttle
Trane - American Standard
Trion Air Bear
Totaline
Ultravation
White Rodgers
Shop Residential
Shop by Brand
Humidifier Pads
Shop by Size
Water Filters
Geothermal Filters
Ultra-Violet Air Purifiers
Shop by Size
1" Filters
2" Filters
4" Filters
5" Filters
6" Filters
Resources
Industries
Commercial Buildings
Pharmaceuticals
Schools
Data Centers
Healthcare Facilities
Blog
FAQs
Services
Job Site Delivery
Delivery Areas
Job Tagging
Air Filter Disposal
Custom Sizes
About Us
Contact Us
Custom Size Filters
Go
Home
Products
Shop Residential
Shop by Size
1" Filters
18x20x1 Air Filters
Back
1" Filters
8x30x1 Air Filters
10x10x1 Air Filters
10x16x1 Air Filters
10x20x1 Air Filters
10x24x1 Air Filters
10x25x1 Air Filters
10x30x1 Air Filters
12x12x1 Air Filters
12x15x1 Air Filters
12x16x1 Air Filters
12x18x1 Air Filters
12x20x1 Air Filters
12x22x1 Air Filters
12x24x1 Air Filters
12x25x1 Air Filters
12x30x1 Air Filters
12x30.625x1 Air Filters
12x36x1 Air Filters
13x21.5x1 Air Filters
14x14x1 Air Filters
14x18x1 Air Filters
14x20x1 Air Filters
14x24x1 Air Filters
14x25x1 Air Filters
14x30x1 Air Filters
15x20x1 Air Filters
15x25x1 Air Filters
15x30x1 Air Filters
15x30.625x1 Air Filters
16x16x1 Air Filters
16x18x1 Air Filters
16x20x1 Air Filters
16x22x1 Air Filters
16x22.25x1 Air Filters
16x24x1 Air Filters
16x25x1 Air Filters
16x30x1 Air Filters
16x32x1 Air Filters
18x18x1 Air Filters
18x22x1 Air Filters
18x24x1 Air Filters
18x25x1 Air Filters
18x30x1 Air Filters
18x36x1 Air Filters
19x27x1 Air Filters
20x20x1 Air Filters
20x21x1 Air Filters
20x22x1 Air Filters
20x22.25x1 Air Filters
20x24x1 Air Filters
20x25x1 Air Filters
20x30x1 Air Filters
20x36x1 Air Filters
21x21x1 Air Filters
21x22x1 Air Filters
21.5x23.312x1 Air Filters
22x22x1 Air Filters
22x24x1 Air Filters
22x26x1 Air Filters
24x24x1 Air Filters
24x30x1 Air Filters
24x36x1 Air Filters
25x25x1 Air Filters
25x32x1 Air Filters
30x30x1 Air Filters
See More
See Less
Narrow By
5 Products
Air Filter Media Type
Synthetic
High Capacity MERV 10
MERV 4 Polyester
Pleated MERV 11 Filters
Pleated MERV 13 Filters
Pleated MERV 10 Filters
false
MERV Rating
4
10
11
13
18x20x1 Air Filters
5 Products
Sort & Filter
12 per page
24 per page
48 per page
Relevance
Price, low to high
Price, high to low
Name
Narrow By
18x20x1 MERV 8 Pleated Filter - High Capacity
$5.84
Add to Cart
18x20x1 MERV 4 Polyester Filter
$4.46
Add to Cart
18x20x1 MERV 8 Pleated Filter
$7.10
Add to Cart
18x20x1 MERV 11 Pleated Filter
$9.97
Add to Cart
18x20x1 MERV 13 Pleated Filter
$13.10
Add to Cart
