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MERV Rating
MERV 8 (31)
MERV 11 (31)
MERV 13 (31)
Nominal Length
8 (9)
10 (9)
12 (9)
13 (9)
14 (9)
15 (9)
16 (9)
17 (9)
18 (9)
19 (3)
20 (9)
6.88 (0)
11.25 (0)
11.5 (0)
11.88 (0)
12.5 (0)
12.75 (0)
13.25 (0)
14.5 (0)
15.25 (0)
15.5 (0)
16.25 (0)
16.38 (0)
16.5 (0)
17.25 (0)
17.5 (0)
18.25 (0)
19.25 (0)
19.5 (0)
19.75 (0)
19.88 (0)
21 (0)
21.25 (0)
21.5 (0)
22 (0)
22.25 (0)
23 (0)
23.25 (0)
23.5 (0)
24 (0)
25 (0)
27 (0)
28 (0)
29 (0)
30 (0)
17.5X22 (0)
Nominal Width
1 (3)
8 (3)
10 (9)
11.25 (9)
11.5 (3)
12 (9)
13.25 (9)
14 (27)
15 (27)
15.25 (9)
15.88 (6)
16 (36)
16.88 (3)
17 (9)
17.25 (9)
17.5 (3)
18 (54)
19 (30)
19.25 (18)
19.5 (3)
20 (93)
21 (117)
21.25 (27)
21.38 (9)
21.5 (60)
22 (117)
22.25 (18)
23 (36)
23.25 (45)
23.5 (18)
24 (99)
25 (123)
26 (36)
26.5 (9)
27 (60)
28 (39)
29 (24)
29.25 (15)
30 (99)
30.5 (18)
30.75 (12)
32 (36)
34 (9)
35.25 (9)
36 (72)
37 (3)
40 (9)
Nominal Depth
1" (33)
2" (30)
4" (30)
SEARCH BY FILTER SIZE
Build your own custom AC or furnace filter in a few easy steps
Nominal Size
Actual Size
Merv Rating
Bulk Quantity Pricing
4
6
12
48
72
120
Quantity
8x20x4
8x20x4
MERV 11
$17.85
$16.07
$15.71
$15.17
$13.39
$12.50
Add to Cart
8x20x4
8x20x4
MERV 13
$18.29
$16.46
$16.10
$15.55
$13.72
$12.80
Add to Cart
8x20x4
8x20x4
MERV 8
$16.68
$15.01
$14.68
$14.18
$12.51
$11.68
Add to Cart
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