SKU
1" panel filter
20x20x1 air filter
The other extremely common size. Square wall and ceiling returns in almost every era of house.
Spec
Specification
- Nominal size (order by this)
- 20x20x1
- Actual measured size
- 19.5 x 19.5 x 0.75
- Depth
- 1″
- Available ratings
- MERV 8 · 11 · 13
- Spoken size
- 20 x 20 x 1 inches
The nominal size is the number printed on the filter frame and the number to order by. The actual size is about half an inch smaller on width and height, which is normal and is what lets the filter slide into its track.
Order
Choose a rating and a cadence
MERV 11 is the right default for a 1-inch slot in a typical Charlotte house. MERV 13 is viable if your system has adequate return capacity.
Per filter$15.00
Per delivery$15.00
Cost per month$7.50
Filters per year6
These prices are placeholders. Supplier pricing is not final. The structure of the offer is real; the numbers are not.
Notify me at launch
Opens an email with 20x20x1, MERV 11, and your cadence already filled in. Ordering is not open yet — there is no cart on this site.