PadMatch / Every humidifier water panel and furnace filter size
- Nominal size
- 20 x 25 x 6 in
- Actual size
- 19.75 x 24.25 x 6 in
- Depth class
- 6 in (media cabinet)
- Order by
- nominal size (20 x 25 x 6 in)
- Typically installed on
- Aprilaire 2200/2250 and Space-Gard 2200 media cabinets and Honeywell F100/F200 20x25
The true measured dimensions of a 20 x 25 x 6 in filter and how to order it.
The nominal size 20 x 25 x 6 in is the name on the frame; the actual size is 19.75 x 24.25 x 6 in. On a flat filter each face runs about half an inch under nominal and a one-inch filter is really three quarters of an inch thick.
A six-inch nominal media filter, actual about 19.75 by 24.25 by 6 inches, that is a genuine six inches thick. It is the Aprilaire 2200 / Space-Gard cabinet size and takes the Aprilaire 201 media.
Find your model
Read the number stamped on the humidifier cabinet or printed on the old pad, then match it below. Confirm the frame size before buying a generic.
- 20 x 25 x 6 in furnace filteractual 19.75 x 24.25 x 6 in
- MERV 8 vs 11 vs 13which rating to buy
- 16 x 25 x 6 in actual sizeactual 15.75 x 24.25 x 6 in
Sources: Aprilaire 201 replacement media (SupplyHouse) ยท Aprilaire-compatible 2200 air cleaner 20x25x6 media (Filterbuy)