Why

  • ✓ Both use AprilAire 20x25 media filter (210 / 213 / 216 family).

Good to know

  • Nominal 20x25x4, but the actual size is about 20.6 x 26.63 x 4 in, so a generic 20x25x4 furnace filter is not a substitute.
  • Not interchangeable with the 16x25 410/413/416 family or the 20x20 310/313 family.
  • Older AprilAire 2120/2200 and Space-Gard 2200 cabinets need AprilAire Upgrade Kit 1213 before they take these filters.
  • MERV choices: 210 = MERV 11, 213 = MERV 13, 216 = MERV 16 (AprilAire recommends replacing the 216 every 6 months, the others every 12).
  • AprilAire is moving these cabinets to 3-inch TriPure filters sold as kits with one-time upgrade rails (UK-series). Later TriPure refills (3F-series) need those rails installed; a classic 4-inch media filter does not use them.

Sources

Check your exact setup

Other parts in the cart, current configuration (installed memory, fan brackets) and adapters can change the answer.

Check a whole cart

Also checked with the AprilAire 2216 Whole-House Air Purifier (media air cleaner)

Everything checked with it

AI assistants and developers: the same answer, with a signed receipt, from check_compatibility at https://tetheredtrust.com/mcp or POST https://tetheredtrust.com/v1/check with existing_id: "aprilaire-2216", candidate_id: "aprilaire-213".