Every size. Literally.
154+ filter sizes, all in one place.
Type the size printed on your old filter's frame, we'll take you straight to it. Backwards, with spaces, however you remember it.
Top sellers
The 12 most common sizes in American homes, never out of stock.
Top Seller1″ pleated
14×20×1
Air Filter
MERV 8 · 11 · 13
$11.99single
$6.00/filter in 12-packs
Top Seller1″ pleated
12×24×1
Air Filter
MERV 8 · 11 · 13
$11.99single
$6.00/filter in 12-packs
Top Seller1″ pleated
16×20×1
Air Filter
MERV 8 · 11 · 13
$12.99single
$6.50/filter in 12-packs
Top Seller1″ pleated
14×25×1
Air Filter
MERV 8 · 11 · 13
$12.99single
$6.50/filter in 12-packs
Top Seller1″ pleated
18×20×1
Air Filter
MERV 8 · 11 · 13
$12.99single
$6.50/filter in 12-packs
Top Seller1″ pleated
16×25×1
Air Filter
MERV 8 · 11 · 13
$12.99single
$6.50/filter in 12-packs
Top Seller1″ pleated
20×20×1
Air Filter
MERV 8 · 11 · 13
$12.99single
$6.50/filter in 12-packs
Top Seller4″ media
16×25×4
Air Filter
MERV 8 · 11 · 13 · 16
$32.99single
$28.00/filter in 4-packs
Top Seller1″ pleated
20×25×1
Air Filter
MERV 8 · 11 · 13
$15.49single
$7.67/filter in 12-packs
Top Seller4″ media
20×25×4
Air Filter
MERV 8 · 11 · 13 · 16
$32.99single
$28.00/filter in 4-packs
Top Seller1″ pleated
24×24×1
Air Filter
MERV 8 · 11 · 13
$15.49single
$7.67/filter in 12-packs
Top Seller1″ pleated
20×30×1
Air Filter
MERV 8 · 11 · 13
$15.49single
$7.67/filter in 12-packs
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
Whole-Home Media (3-6 Inch)
Honeywell, Aprilaire, Lennox & Carrier cabinets, change 1-2× a year
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