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Heating, Venting & Cooling
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Air Filters
Highly Rated 18x20 Air Filters
Shop highly rated products based on our customer reviews
9 Results
Review Rating: Highly Rated
Subscription Eligible: Subscription Eligible
Air Filter Size: 18x20
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Department
Heating, Venting & Cooling
Air Filters
Brand
HDX
AAF Flanders
Nordic Pure
Price
to
Go
$0 - $10
$10 - $20
$20 - $30
$50 - $100
Air Filter Size
8x20
10x20
10x10
10x24
10x30
12x20
12x24
12x12
12x30
12x18
12x25
12x36
14x20
14x24
14x14
14x25
14x30
14x18
14x36
15x20
16x25
16x20
16x24
16x16
16x30
16x28
17 1/2 x17 1/2
17 1/2 x23 1/2
17 1/2 x29 1/2
17 1/2x23 1/2
18x20
18x18
18x24
18x30
18x25
18x36
19x21
19x22
20x25
20x20
20x24
20x30
20x36
21x21
22x22
23 1/2x23 1/2
24x24
24x30
25x25
30x30
31x28
+ View All
Air Filter Depth (in.)
1
2
MERV Rating (Minimum Efficiency Reporting Value)
MERV 13
MERV 12
MERV 11
MERV 8
Filter Performance Rating (FPR)
4-5 - Good
6-7 - Better
8-9 - Best
10 - Premium
12 - Ultimate
Not Rated
+ View All
Most Popular Sizes
18x20x1
Other Sizes
Contaminants Captured
Dust/Lint
Pollen
Dust Mites
Pet Dander
Bacteria
Mold Spores
Allergens
Most Smoke
Virus Carriers
Odors
Smog Particles
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Pack Size
1
2
3
12
Air Filter Features
Pleated
Electrostatic
More Options Available
$
11
.
96
(
$3.99
/filter
)
(12989)
Model# HDX3P5-011820
HDX
18 in. x 20 in. x 1 in. Standard Pleated Furnace Air Filter FPR 5, MERV 8 (3-Pack)
Add to Cart
Compare
More Options Available
$
18
.
97
Buy
4
or more
$9.49
(8731)
Model# HDX1P9-011820
HDX
18 in. x 20 in. x 1 in. Superior Pleated Air Filter FPR 9, MERV 12
Add to Cart
Compare
More Options Available
$
22
.
97
(
$11.49
/filter
)
Buy
4
or more
$11.49
(2297)
Model# HDX2P7-011820
HDX
18 in. x 20 in. x 1 in. Allergen Plus Pleated Air Filter FPR 7, MERV 11 (2-Pack)
Add to Cart
Compare
More Options Available
$
5
.
98
(18087)
Model# HDX1P5-011820
HDX
18 in. x 20 in. x 1 in. Standard Pleated Air Filter FPR 5, MERV 8
Add to Cart
Compare
More Options Available
$
22
.
97
Buy
4
or more
$11.49
(5594)
Model# 61201.011820
HDX
18 in. x 20 in. x 1 in. Elite Allergen Pleated Air Filter FPR 12, MERV 13
Add to Cart
Compare
More Options Available
$
13
.
97
Buy
4
or more
$6.99
(8731)
Model# HDX1P7-011820
HDX
18 in. x 20 in. x 1 in. Allergen Plus Pleated Air Filter FPR 7, MERV 11
Add to Cart
Compare
More Options Available
$
24
.
97
Buy
4
or more
$12.49
(8731)
Model# HDX1P10-011820
HDX
18 in. x 20 in. x 1 in. Premium Pleated Air Filter FPR 10, MERV 13
Add to Cart
Compare
More Options Available
$
91
.
15
/case
(
$7.60
/filter
)
(80)
Model# 80055.021820
AAF Flanders
18 x 20 x 2 Pre-Pleat 40 Pleated MERV 8 air filter; (12-Pack)
Add to Cart
Compare
More Options Available
$
29
.
25
/box
(
$9.75
/filter
)
(208)
Model# 18x20x2M12-3
Nordic Pure
18 in. x 20 in. x 2 in. Allergen Pleated MERV 12 Air Filter (3-Pack)
Add to Cart
Compare
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