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How does it Work?

Replacement Air Filter Size Reference

  1. Pick Your Filters
  2. Coose the Quality
  3. Tell Us How Often
  4. Start Service and Relax

Standard Filter Listed Sizes for Your HVAC System

One of our many standard filter sizes will probably replace your existing filter.  Listed filter sizes will usually replace filters that fall within a certain size range.  Find your replacement filter size in this handy chart.

 

 

1 INCH REPLACES:
Listed Size Actual Size From To
8 x 16 x 1 7.5 x 15.5 x 1 7.5 x 15.5 x 1 8 x 16 x 1
8 x 30 x 1 7.5 x 29.5 x 1 7.5 x 29.5 x 1 8 x 30 x 1
10 x 10 x 1 9.5 x 9.5 x 1 9.5 x 9.5 x 1 10 x 10 x 1
10 x 15 x 1 9.5 x 14.5 x 1 9.5 x 14.5 x 1 10 x 15 x 1
10 x 16 x 1 9.5 x 15.5 x 1 9.5 x 15.5 x 1 10 x 16 x 1
10 x 20 x 1 9.5 x 19.5 x 1 9.5 x 19.5 x 1 10 x 20 x 1
10 x 24 x 1 9.5 x 23.5 x 1 9.5 x 23.5 x 1 10 x 24 x 1
10 x 25 x 1 9.5 x 24.5 x 1 9.5 x 24.5 x 1 10 x 25 x 1
12 x 12 x 1 11.5 x 11.5 x 1 11.5 x 11.5 x 1 12 x 12 x 1
12 x 16 x 1 11.5 x 15.5 x 1 11.5 x 15.5 x 1 12 x 16 x 1
12 x 18 x 1 11.5 x 17.5 x 1 11.5 x 17.5 x 1 12 x 18 x 1
12 x 20 x 1 11.5 x 19.5 x 1 11.5 x 19.5 x 1 12 x 20 x 1
12 x 24 x 1 11.5 x 23.5 x 1 11.5 x 23.5 x 1 12 x 24 x 1
12 x 25 x 1 11.5 x 24.5 x 1 11.5 x 24.5 x 1 12 x 25 x 1
12 x 27 x 1 11.5 x 26.5 x 1 11.5 x 26.5 x 1 12 x 27 x 1
12 x 30 x 1 11.5 x 29.5 x 1 11.5 x 29.5 x 1 12 x 30 x 1
12 x 36 x 1 11.5 x 35.5 x 1 11.5 x 35.5 x 1 12 x 36 x 1
14 x 14 x 1 13.5 x 13.5 x 1 13.5 x 13.5 x 1 14 x 14 x 1
14 x 18 x 1 13.5 x 17.5 x 1 13.5 x 17.5 x 1 14 x 18 x 1
14 x 20 x 1 13.5 x 19.5 x 1 13.5 x 19.5 x 1 14 x 20 x 1
14 x 24 x 1 13.5 x 23.5 x 1 13.5 x 23.5 x 1 14 x 24 x 1
14 x 25 x 1 13.5 x 24.5 x 1 13.5 x 24.5 x 1 14 x 25 x 1
14 x 30 x 1 13.5 x 29.5 x 1 13.5 x 29.5 x 1 14 x 30 x 1
14 x 36 x 1 13.5 x 35.5 x 1 13.5 x 35.5 x 1 14 x 36 x 1
15 x 20 x 1 14.5 x 19.5 x 1 14.5 x 19.5 x 1 15 x 20 x 1
15 x 25 x 1 14.5 x 24.5 x 1 14.5 x 24.5 x 1 15 x 25 x 1
15 x 30 x 1 14.5 x 29.5 x 1 14.5 x 29.5 x 1 15 x 30 x 1
16 x 16 x 1 15.5 x 15.5 x 1 15.5 x 15.5 x 1 16 x 16 x 1
16 x 20 x 1 15.5 x 19.5 x 1 15.5 x 19.5 x 1 16 x 20 x 1
16 x 24 x 1 15.5 x 23.5 x 1 15.5 x 23.5 x 1 16 x 24 x 1
16 x 25 x 1 15.5 x 24.5 x 1 15.5 x 24.5 x 1 16 x 25 x 1
16 x 30 x 1 15.5 x 29.5 x 1 15.5 x 29.5 x 1 16 x 30 x 1
16 x 36 x 1 15.5 x 35.5 x 1 15.5 x 35.5 x 1 16 x 36 x 1
17 x 20 x 1 16.5 x 19.5 x 1 16.5 x 19.5 x 1 17 x 20 x 1
17 x 22 x 1 16.5 x 21.5 x 1 16.5 x 21.5 x 1 17 x 22 x 1
17 x 25 x 1 16.5 x 24.5 x 1 16.5 x 24.5 x 1 17 x 25 x 1
18 x 18 x 1 17.5 x 17.5 x 1 17.5 x 17.5 x 1 18 x 18 x 1
18 x 20 x 1 17.5 x 19.5 x 1 17.5 x 19.5 x 1 18 x 20 x 1
18 x 22 x 1 17.5 x 21.5 x 1 17.5 x 21.5 x 1 18 x 22 x 1
18 x 24 x 1 17.5 x 23.5 x 1 17.5 x 23.5 x 1 18 x 24 x 1
18 x 25 x 1 17.5 x 24.5 x 1 17.5 x 24.5 x 1 18 x 25 x 1
18 x 30 x 1 17.5 x 29.5 x 1 17.5 x 29.5 x 1 18 x 30 x 1
18 x 36 x 1 17.5 x 35.5 x 1 17.5 x 35.5 x 1 18 x 36 x 1
19 x 21 x 1 18.5 x 20.5 x 1 18.5 x 20.5 x 1 19 x 21 x 1
20 x 20 x 1 19.5 x 19.5 x 1 19.5 x 19.5 x 1 20 x 20 x 1
20 x 22 x 1 19.5 x 21.5 x 1 19.5 x 21.5 x 1 20 x 22 x 1
20 x 23 x 1 19.5 x 22.5 x 1 19.5 x 22.5 x 1 20 x 23 x 1
20 x 24 x 1 19.5 x 23.5 x 1 19.5 x 23.5 x 1 20 x 24 x 1
20 x 25 x 1 19.5 x 24.5 x 1 19.5 x 24.5 x 1 20 x 25 x 1
20 x 30 x 1 19.5 x 29.5 x 1 19.5 x 29.5 x 1 20 x 30 x 1
20 x 36 x 1 19.5 x 35.5 x 1 19.5 x 35.5 x 1 20 x 36 x 1
21 x 22 x 1 20.5 x 21.5 x 1 20.5 x 21.5 x 1 21 x 22 x 1
22 x 22 x 1 21.5 x 21.5 x 1 21.5 x 21.5 x 1 22 x 22 x 1
22 x 24 x 1 21.5 x 23.5 x 1 21.5 x 23.5 x 1 22 x 24 x 1
24 x 24 x 1 23.5 x 23.5 x 1 23.5 x 23.5 x 1 24 x 24 x 1
24 x 30 x 1 23.5 x 29.5 x 1 23.5 x 29.5 x 1 24 x 30 x 1
24 x 36 x 1 23.5 x 35.5 x 1 23.5 x 35.5 x 1 24 x 36 x 1
25 x 25 x 1 24.5 x 24.5 x 1 24.5 x 24.5 x 1 25 x 25 x 1
25 x 28 x 1 24.5 x 27.5 x 1 24.5 x 27.5 x 1 25 x 28 x 1
25 x 29 x 1 24.5 x 28.5 x 1 24.5 x 28.5 x 1 25 x 29 x 1
25 x 32 x 1 24.5 x 31.5 x 1 24.5 x 31.5 x 1 25 x 32 x 1
27 x 27 x 1 26.5 x 26.5 x 1 26.5 x 26.5 x 1 27 x 27 x 1
28 x 30 x 1 27.5 x 29.5 x 1 27.5 x 29.5 x 1 28 x 30 x 1
29 x 29 x 1 28.5 x 28.5 x 1 28.5 x 28.5 x 1 29 x 29 x 1
30 x 30 x 1 29.5 x 29.5 x 1 29.5 x 29.5 x 1 30 x 30 x 1

 

 

 

 

2 INCH REPLACES:
Listed Size Actual Size From To
8 x 16 x 2 7.5 x 15.5 x 2 7.5 x 15.5 x 2 8 x 16 x 2
8 x 30 x 2 7.5 x 29.5 x 2 7.5 x 29.5 x 2 8 x 30 x 2
10 x 10 x 2 9.5 x 9.5 x 2 9.5 x 9.5 x 2 10 x 10 x 2
10 x 15 x 2 9.5 x 14.5 x 2 9.5 x 14.5 x 2 10 x 15 x 2
10 x 16 x 2 9.5 x 15.5 x 2 9.5 x 15.5 x 2 10 x 16 x 2
10 x 20 x 2 9.5 x 19.5 x 2 9.5 x 19.5 x 2 10 x 20 x 2
10 x 24 x 2 9.5 x 23.5 x 2 9.5 x 23.5 x 2 10 x 24 x 2
10 x 25 x 2 9.5 x 24.5 x 2 9.5 x 24.5 x 2 10 x 25 x 2
12 x 12 x 2 11.5 x 11.5 x 2 11.5 x 11.5 x 2 12 x 12 x 2
12 x 16 x 2 11.5 x 15.5 x 2 11.5 x 15.5 x 2 12 x 16 x 2
12 x 18 x 2 11.5 x 17.5 x 2 11.5 x 17.5 x 2 12 x 18 x 2
12 x 20 x 2 11.5 x 19.5 x 2 11.5 x 19.5 x 2 12 x 20 x 2
12 x 24 x 2 11.5 x 23.5 x 2 11.5 x 23.5 x 2 12 x 24 x 2
12 x 25 x 2 11.5 x 24.5 x 2 11.5 x 24.5 x 2 12 x 25 x 2
12 x 27 x 2 11.5 x 26.5 x 2 11.5 x 26.5 x 2 12 x 27 x 2
12 x 30 x 2 11.5 x 29.5 x 2 11.5 x 29.5 x 2 12 x 30 x 2
12 x 36 x 2 11.5 x 35.5 x 2 11.5 x 35.5 x 2 12 x 36 x 2
14 x 14 x 2 13.5 x 13.5 x 2 13.5 x 13.5 x 2 14 x 14 x 2
14 x 18 x 2 13.5 x 17.5 x 2 13.5 x 17.5 x 2 14 x 18 x 2
14 x 20 x 2 13.5 x 19.5 x 2 13.5 x 19.5 x 2 14 x 20 x 2
14 x 24 x 2 13.5 x 23.5 x 2 13.5 x 23.5 x 2 14 x 24 x 2
14 x 25 x 2 13.5 x 24.5 x 2 13.5 x 24.5 x 2 14 x 25 x 2
14 x 30 x 2 13.5 x 29.5 x 2 13.5 x 29.5 x 2 14 x 30 x 2
14 x 36 x 2 13.5 x 35.5 x 2 13.5 x 35.5 x 2 14 x 36 x 2
15 x 20 x 2 14.5 x 19.5 x 2 14.5 x 19.5 x 2 15 x 20 x 2
15 x 25 x 2 14.5 x 24.5 x 2 14.5 x 24.5 x 2 15 x 25 x 2
15 x 30 x 2 14.5 x 29.5 x 2 14.5 x 29.5 x 2 15 x 30 x 2
16 x 16 x 2 15.5 x 15.5 x 2 15.5 x 15.5 x 2 16 x 16 x 2
16 x 20 x 2 15.5 x 19.5 x 2 15.5 x 19.5 x 2 16 x 20 x 2
16 x 24 x 2 15.5 x 23.5 x 2 15.5 x 23.5 x 2 16 x 24 x 2
16 x 25 x 2 15.5 x 24.5 x 2 15.5 x 24.5 x 2 16 x 25 x 2
16 x 30 x 2 15.5 x 29.5 x 2 15.5 x 29.5 x 2 16 x 30 x 2
16 x 36 x 2 15.5 x 35.5 x 2 15.5 x 35.5 x 2 16 x 36 x 2
17 x 20 x 2 16.5 x 19.5 x 2 16.5 x 19.5 x 2 17 x 20 x 2
17 x 22 x 2 16.5 x 21.5 x 2 16.5 x 21.5 x 2 17 x 22 x 2
17 x 25 x 2 16.5 x 24.5 x 2 16.5 x 24.5 x 2 17 x 25 x 2
18 x 18 x 2 17.5 x 17.5 x 2 17.5 x 17.5 x 2 18 x 18 x 2
18 x 20 x 2 17.5 x 19.5 x 2 17.5 x 19.5 x 2 18 x 20 x 2
18 x 22 x 2 17.5 x 21.5 x 2 17.5 x 21.5 x 2 18 x 22 x 2
18 x 24 x 2 17.5 x 23.5 x 2 17.5 x 23.5 x 2 18 x 24 x 2
18 x 25 x 2 17.5 x 24.5 x 2 17.5 x 24.5 x 2 18 x 25 x 2
18 x 30 x 2 17.5 x 29.5 x 2 17.5 x 29.5 x 2 18 x 30 x 2
18 x 36 x 2 17.5 x 35.5 x 2 17.5 x 35.5 x 2 18 x 36 x 2
19 x 21 x 2 18.5 x 20.5 x 2 18.5 x 20.5 x 2 19 x 21 x 2
20 x 20 x 2 19.5 x 19.5 x 2 19.5 x 19.5 x 2 20 x 20 x 2
20 x 22 x 2 19.5 x 21.5 x 2 19.5 x 21.5 x 2 20 x 22 x 2
20 x 23 x 2 19.5 x 22.5 x 2 19.5 x 22.5 x 2 20 x 23 x 2
20 x 24 x 2 19.5 x 23.5 x 2 19.5 x 23.5 x 2 20 x 24 x 2
20 x 25 x 2 19.5 x 24.5 x 2 19.5 x 24.5 x 2 20 x 25 x 2
20 x 30 x 2 19.5 x 29.5 x 2 19.5 x 29.5 x 2 20 x 30 x 2
20 x 36 x 2 19.5 x 35.5 x 2 19.5 x 35.5 x 2 20 x 36 x 2
21 x 22 x 2 20.5 x 21.5 x 2 20.5 x 21.5 x 2 21 x 22 x 2
22 x 22 x 2 21.5 x 21.5 x 2 21.5 x 21.5 x 2 22 x 22 x 2
22 x 24 x 2 21.5 x 23.5 x 2 21.5 x 23.5 x 2 22 x 24 x 2
24 x 24 x 2 23.5 x 23.5 x 2 23.5 x 23.5 x 2 24 x 24 x 2
24 x 30 x 2 23.5 x 29.5 x 2 23.5 x 29.5 x 2 24 x 30 x 2
24 x 36 x 2 23.5 x 35.5 x 2 23.5 x 35.5 x 2 24 x 36 x 2
25 x 25 x 2 24.5 x 24.5 x 2 24.5 x 24.5 x 2 25 x 25 x 2
25 x 28 x 2 24.5 x 27.5 x 2 24.5 x 27.5 x 2 25 x 28 x 2
25 x 29 x 2 24.5 x 28.5 x 2 24.5 x 28.5 x 2 25 x 29 x 2
25 x 32 x 2 24.5 x 31.5 x 2 24.5 x 31.5 x 2 25 x 32 x 2
27 x 27 x 2 26.5 x 26.5 x 2 26.5 x 26.5 x 2 27 x 27 x 2
28 x 30 x 2 27.5 x 29.5 x 2 27.5 x 29.5 x 2 28 x 30 x 2
29 x 29 x 2 28.5 x 28.5 x 2 28.5 x 28.5 x 2 29 x 29 x 2
30 x 30 x 2 29.5 x 29.5 x 2 29.5 x 29.5 x 2 30 x 30 x 2

 

 

 

 

4 INCH REPLACES:
Listed Size Actual Size From To
8 x 16 x 4 7.5 x 15.5 x 4 7.5 x 15.5 x 4 8 x 16 x 4
8 x 30 x 4 7.5 x 29.5 x 4 7.5 x 29.5 x 4 8 x 30 x 4
10 x 10 x 4 9.5 x 9.5 x 4 9.5 x 9.5 x 4 10 x 10 x 4
10 x 15 x 4 9.5 x 14.5 x 4 9.5 x 14.5 x 4 10 x 15 x 4
10 x 16 x 4 9.5 x 15.5 x 4 9.5 x 15.5 x 4 10 x 16 x 4
10 x 20 x 4 9.5 x 19.5 x 4 9.5 x 19.5 x 4 10 x 20 x 4
10 x 24 x 4 9.5 x 23.5 x 4 9.5 x 23.5 x 4 10 x 24 x 4
10 x 25 x 4 9.5 x 24.5 x 4 9.5 x 24.5 x 4 10 x 25 x 4
12 x 12 x 4 11.5 x 11.5 x 4 11.5 x 11.5 x 4 12 x 12 x 4
12 x 16 x 4 11.5 x 15.5 x 4 11.5 x 15.5 x 4 12 x 16 x 4
12 x 18 x 4 11.5 x 17.5 x 4 11.5 x 17.5 x 4 12 x 18 x 4
12 x 20 x 4 11.5 x 19.5 x 4 11.5 x 19.5 x 4 12 x 20 x 4
12 x 24 x 4 11.5 x 23.5 x 4 11.5 x 23.5 x 4 12 x 24 x 4
12 x 25 x 4 11.5 x 24.5 x 4 11.5 x 24.5 x 4 12 x 25 x 4
12 x 27 x 4 11.5 x 26.5 x 4 11.5 x 26.5 x 4 12 x 27 x 4
12 x 30 x 4 11.5 x 29.5 x 4 11.5 x 29.5 x 4 12 x 30 x 4
12 x 36 x 4 11.5 x 35.5 x 4 11.5 x 35.5 x 4 12 x 36 x 4
14 x 14 x 4 13.5 x 13.5 x 4 13.5 x 13.5 x 4 14 x 14 x 4
14 x 18 x 4 13.5 x 17.5 x 4 13.5 x 17.5 x 4 14 x 18 x 4
14 x 20 x 4 13.5 x 19.5 x 4 13.5 x 19.5 x 4 14 x 20 x 4
14 x 24 x 4 13.5 x 23.5 x 4 13.5 x 23.5 x 4 14 x 24 x 4
14 x 25 x 4 13.5 x 24.5 x 4 13.5 x 24.5 x 4 14 x 25 x 4
14 x 30 x 4 13.5 x 29.5 x 4 13.5 x 29.5 x 4 14 x 30 x 4
14 x 36 x 4 13.5 x 35.5 x 4 13.5 x 35.5 x 4 14 x 36 x 4
15 x 20 x 4 14.5 x 19.5 x 4 14.5 x 19.5 x 4 15 x 20 x 4
15 x 25 x 4 14.5 x 24.5 x 4 14.5 x 24.5 x 4 15 x 25 x 4
15 x 30 x 4 14.5 x 29.5 x 4 14.5 x 29.5 x 4 15 x 30 x 4
16 x 16 x 4 15.5 x 15.5 x 4 15.5 x 15.5 x 4 16 x 16 x 4
16 x 20 x 4 15.5 x 19.5 x 4 15.5 x 19.5 x 4 16 x 20 x 4
16 x 24 x 4 15.5 x 23.5 x 4 15.5 x 23.5 x 4 16 x 24 x 4
16 x 25 x 4 15.5 x 24.5 x 4 15.5 x 24.5 x 4 16 x 25 x 4
16 x 30 x 4 15.5 x 29.5 x 4 15.5 x 29.5 x 4 16 x 30 x 4
16 x 36 x 4 15.5 x 35.5 x 4 15.5 x 35.5 x 4 16 x 36 x 4
17 x 20 x 4 16.5 x 19.5 x 4 16.5 x 19.5 x 4 17 x 20 x 4
17 x 22 x 4 16.5 x 21.5 x 4 16.5 x 21.5 x 4 17 x 22 x 4
17 x 25 x 4 16.5 x 24.5 x 4 16.5 x 24.5 x 4 17 x 25 x 4
18 x 18 x 4 17.5 x 17.5 x 4 17.5 x 17.5 x 4 18 x 18 x 4
18 x 20 x 4 17.5 x 19.5 x 4 17.5 x 19.5 x 4 18 x 20 x 4
18 x 22 x 4 17.5 x 21.5 x 4 17.5 x 21.5 x 4 18 x 22 x 4
18 x 24 x 4 17.5 x 23.5 x 4 17.5 x 23.5 x 4 18 x 24 x 4
18 x 25 x 4 17.5 x 24.5 x 4 17.5 x 24.5 x 4 18 x 25 x 4
18 x 30 x 4 17.5 x 29.5 x 4 17.5 x 29.5 x 4 18 x 30 x 4
18 x 36 x 4 17.5 x 35.5 x 4 17.5 x 35.5 x 4 18 x 36 x 4
19 x 21 x 4 18.5 x 20.5 x 4 18.5 x 20.5 x 4 19 x 21 x 4
20 x 20 x 4 19.5 x 19.5 x 4 19.5 x 19.5 x 4 20 x 20 x 4
20 x 22 x 4 19.5 x 21.5 x 4 19.5 x 21.5 x 4 20 x 22 x 4
20 x 23 x 4 19.5 x 22.5 x 4 19.5 x 22.5 x 4 20 x 23 x 4
20 x 24 x 4 19.5 x 23.5 x 4 19.5 x 23.5 x 4 20 x 24 x 4
20 x 25 x 4 19.5 x 24.5 x 4 19.5 x 24.5 x 4 20 x 25 x 4
20 x 30 x 4 19.5 x 29.5 x 4 19.5 x 29.5 x 4 20 x 30 x 4