The size directory
136 filter sizes, all in one place.
Type the size printed on your old filter's frame and we'll take you straight to it. Backwards, with spaces, however you remember it.
Most common sizes
The 12 most common sizes in American homes.
Most common
14×20×1
Air Filter
MERV 8 · 13
from $76.99
per case of 12, shipping included
Most common
12×24×1
Air Filter
MERV 8 · 11 · 13
from $72.99
per case of 12, shipping included
Most common
16×20×1
Air Filter
MERV 8 · 11 · 13
from $69.99
per case of 12, shipping included
Most common
14×25×1
Air Filter
MERV 8 · 11 · 13
from $81.99
per case of 12, shipping included
Most common
18×20×1
Air Filter
MERV 8 · 13
from $80.99
per case of 12, shipping included
Most common
16×25×1
Air Filter
MERV 8 · 11 · 13
from $75.99
per case of 12, shipping included
Most common
20×20×1
Air Filter
MERV 8 · 11 · 13
from $76.99
per case of 12, shipping included
Most common
16×25×4
Air Filter
MERV 8 · 11 · 13
from $140.99
per case of 12, shipping included
Most common
20×25×1
Air Filter
MERV 8 · 11 · 13
from $80.99
per case of 12, shipping included
Most common
20×25×4
Air Filter
MERV 8 · 11 · 13
from $156.99
per case of 12, shipping included
Most common
24×24×1
Air Filter
MERV 8 · 13
from $87.99
per case of 12, shipping included
Most common
20×30×1
Air Filter
MERV 8 · 11 · 13
from $90.99
per case of 12, shipping included
1-Inch Filters
Standard residential, change every 1-3 months
- 14x20x1
- 12x24x1
- 16x20x1
- 14x25x1
- 18x20x1
- 16x25x1
- 20x20x1
- 20x25x1
- 24x24x1
- 20x30x1
- 10x10x1
- 12x12x1
- 12x16x1
- 14x14x1
- 10x20x1
- 12x18x1
- 10x24x1
- 12x20x1
- 10x25x1
- 14x18x1
- 16x16x1
- 10x30x1
- 12x25x1
- 15x20x1
- 18x18x1
- 14x24x1
- 12x30x1
- 15x25x1
- 16x24x1
- 18x22x1
- 14x30x1
- 12x36x1
- 18x24x1
- 20x22x1
- 15x30x1
- 18x25x1
- 16x30x1
- 20x24x1
- 22x22x1
- 16x32x1
- 18x30x1
- 25x25x1
- 18x36x1
- 20x36x1
- 24x30x1
- 25x30x1
- 24x36x1
- 30x30x1
- 30x36x1
- 8x14x1
- 8x16x1
- 8x20x1
- 12x15x1
- 8x24x1
- 14x15.5x1
- 8x30x1
- 15x16x1
- 15x19x1
- 8x36x1
- 16x18x1
- 17x17x1
- 17.5x17.5x1
- 17x19x1
- 17.5x19.5x1
- 16x22.25x1
- 17x21x1
- 15x24x1
- 17x22x1
- 19.5x19.5x1
- 19x21x1
- 18.5x22x1
- 19.5x21x1
- 17.5x23.5x1
- 19x22x1
- 19.5x21.5x1
- 20x21x1
- 19.875x21.5x1
- 20x21.5x1
- 21x21x1
- 20x22.25x1
- 19.5x23.5x1
- 21.5x23.25x1
- 19x27x1
- 15x35x1
- 23x23x1
- 23.5x23.5x1
- 25x28x1
- 28x30x1
2-Inch Filters
Light-commercial & rooftop units
4-Inch Pleated
Standard 4-inch filter racks, change every 6 to 12 months. Media cabinets take their own sizes, so check your old filter.
Don't see your size?
Send us your measurements and we'll check what our supplier can make, then reply with price and lead time.