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AprilAire · media air cleaner · media air cleaner cabinet

AprilAire 2120 replacement filter

Use part U1213, or any one of 1213, 213, 210, 216, 213CBN, UK213 or UK211. Interval not published by the maker.

Any one of these fits · standard choice

Maker lists this model

AprilAire U1213 MERV 13 + rails (6-inch cabinets)

AprilAire U1213 MERV 13 TriPure Filter + Upgrade Rails for AprilAire/Space-Gard 2120, 2200

Part number
U1213
How many
1 per unit
How often
Interval not published by the maker
Size
20 x 25 x 5 in20 x 25 x 5 in nominal (21.07 x 25.24 x 5.19 actual)

A one-time conversion: AprilAire's choice for a 2120 not yet upgraded to a 4-inch filter; it includes the rails and a 3-inch TriPure filter. AprilAire's pages do not say how many filters the cabinet holds; we list one.

Buy U1213 MERV 13 + rails (6-inch cabinets) on AmazonManufacturer page

Opens an Amazon search for AprilAire U1213 MERV 13 + rails (6-inch cabinets). Check the listing says U1213.

See the sources

Compare the 8 options

The 2120 holds one filter at a time. Any one of these fits; AprilAire ships it with the first one.

FilterGradeSizeHow oftenBuy
U1213 MERV 13 + rails (6-inch cabinets)U1213standard choice3F213 MERV 13 TriPure filter media, upgrade rails (frame supports and bases)20 x 25 x 5 inInterval not published by the makerAmazon
1213 upgrade kit1213213 MERV 13 filter media, filter frame (frame supports and bases)20 x 25 x 5 inInterval not published by the makerAmazon
213 MERV 13213being replaced by UK213MERV 13 synthetic media20 x 25 x 4 inEvery 12 monthsAmazon
210 MERV 11210being replaced by UK211MERV 11 synthetic media20 x 25 x 4 inEvery 12 monthsAmazon
216 MERV 16216MERV 16 synthetic media20 x 25 x 4 inEvery 6 monthsAmazon
213CBN MERV 13 + carbon213CBNMERV 13 synthetic media, activated carbon20 x 25 x 4 inEvery 6 monthsAmazon
UK213 MERV 13 + railsUK213MERV 13 TriPure 3-inch filter, one-time upgrade rails20 x 25 x 4 inLasts up to 12 monthsAmazon
UK211 MERV 11 + railsUK211MERV 11 TriPure 3-inch filter, one-time upgrade rails20 x 25 x 4 inLasts up to 12 monthsAmazon

Look-alike models that take a different filter

The 2200 takes the 201 without a kit; the 2210 and 1210 take the 213 or 210 directly.

Sources

High confidence: the manufacturer names this exact model on a live page. Each line is the page we read and the day we read it.

  • Which filter fits shop.aprilaire.com Maker's own page checked Oct 1, 2026
    Compatible Models: 2120, 2200
  • How often shop.aprilaire.com Maker's own page checked Oct 1, 2026
    Recommended Replacement Schedule: 12 Months
  • Size shop.aprilaire.com Maker's own page checked Oct 1, 2026
    Nominal Measurements: 20H x 25W x 5D (inches) Actual Measurements: 21.07H x 25.24W x 5.19D (inches)
  • What's in it shop.aprilaire.com Maker's own page checked Oct 1, 2026
    MERV Rating: 13; Materials: Metal, Synthetic Fiber; INCLUDED IN THE BOX: (1) 213 Filter Media (4) Frame Supports (2) Frame Bases (1) Styrofoam Door Liner (1) Door Label
  • Packs shop.aprilaire.com Maker's own page checked Oct 1, 2026
    Package sizes: 1-pack 213; 2-pack 213 02; 4-pack 213 04; 8-pack 213 08
  • Other genuine options shop.aprilaire.com Maker's own page checked Oct 1, 2026
    2210 ships with 213; compatible 210 (MERV 11), 213CBN (MERV 13 + carbon), 216 (MERV 16); 'up to every 12 months'; '20 x 25' nominal
Show all 59 sources

Which filter fits

  1. shop.aprilaire.com Maker's own page checked Oct 1, 2026
    Compatible Models: 2120, 2200
  2. shop.aprilaire.com Maker's own page checked Oct 1, 2026
    Compatible Models: 2120, 2200
  3. shop.aprilaire.com Maker's own page checked Oct 1, 2026
    Compatible Models: 1210, 1620, 2210, 2216, 3210, 4200, 2120 with Upgrade Kit 1213, 2200 with Upgrade Kit 1213, UV12, UV22. With 1213 Upgrade Kit, also fits 2120, 2200 AprilAire and 2200 Space-Gard Air Purifiers
  4. shop.aprilaire.com Maker's own page checked Oct 1, 2026
    Compatible Models: 1210, 1620, 2210, 2216, 3210, 4200, 2120 with Upgrade Kit 1213, 2200 with Upgrade Kit 1213, UV12, UV22. With 1213 Upgrade Kit, also fits 2120, 2200 AprilAire and 2200 Space-Gard Air Purifiers
  5. shop.aprilaire.com Maker's own page checked Oct 1, 2026
    Compatible Models: 1210, 1620, 2210, 2216, 3210, 4200, 2120 with Upgrade Kit 1213, 2200 with Upgrade Kit 1213, UV12, UV22. With 1213 Upgrade Kit, also fits 2120, 2200 Air Purifiers and 2200 Space-Gard
  6. shop.aprilaire.com Maker's own page checked Oct 1, 2026
    Compatible Models: 1210, 1620, 2210, 2216, 3210, 4200, 2120 with Upgrade Kit 1213, 2200 with Upgrade Kit 1213, UV12, UV22. With 1213 Upgrade Kit, also fits 2120, 2200 Air Purifiers and 2200 Space-Gard
  7. shop.aprilaire.com Maker's own page checked Oct 1, 2026
    Compatible Models: 1210, 1620, 2120, 2200, 2210, 2216, 3210, 4200, U121, U223, U226, U162, U172
  8. shop.aprilaire.com Maker's own page checked Oct 1, 2026
    If the AprilAire or Space-Gard 6" cabinet has not yet been upgraded to a 4" filter, choose Model U1213/U1413 (includes both upgrade rails needed to convert the cabinet). If the cabinet has already been upgraded using the 1213/1413 Upgrade Kit, choose Model UK211. This replacement option is designed for cabinets that have already been converted to the 4" filter.
  9. shop.aprilaire.com Maker's own page checked Oct 1, 2026
    Compatible Models: 1210, 1620, 2120, 2200, 2210, 2216, 3210, 4200, U121, U223, U226, U162, U172
  10. shop.aprilaire.com Maker's own page checked Oct 1, 2026
    If the AprilAire or Space-Gard 6" cabinet has not yet been upgraded to a 4" filter, choose Model U1213/U1413 (includes both upgrade rails needed to convert the cabinet). If the cabinet has already been upgraded using the 1213/1413 Upgrade Kit, choose Model UK211. This replacement option is designed for cabinets that have already been converted to the 4" filter.
  11. shop.aprilaire.com Maker's own page checked Oct 1, 2026
    Product 'AprilAire 1213 Upgrade Kit', SKUs 1213
  12. shop.aprilaire.com Maker's own page checked Oct 1, 2026
    Product 'AprilAire U1213 MERV 13 TriPure Filter + Upgrade Rails for AprilAire/Space-Gard 2120, 2200', SKUs U1213
  13. shop.aprilaire.com Maker's own page checked Oct 1, 2026
    Product 'AprilAire 213 MERV 13 Air Filter', SKUs 213, 213 02, 213 04, 213 08
  14. shop.aprilaire.com Maker's own page checked Oct 1, 2026
    Page for the 1210 (per its URL): Also compatible with: 213 MERV 13 Air Filter 213CBN MERV 13 + Carbon Air Filter 216 MERV 16 Air Filter
  15. shop.aprilaire.com Maker's own page checked Oct 1, 2026
    Page for the 1620 (per its URL): Also compatible with: 213 MERV 13 Air Filter 213CBN MERV 13 + Carbon Air Filter 216 MERV 16 Air Filter
  16. shop.aprilaire.com Maker's own page checked Oct 1, 2026
    Page for the 2210 (per its URL): Comes with one AprilAire 213 MERV 13 Air Filter
  17. shop.aprilaire.com Maker's own page checked Oct 1, 2026
    Page for the 2216 (per its URL): Also compatible with: 210 MERV 11 Air Filter 213 MERV 13 Air Filter 213CBN MERV 13 Air Filter
  18. shop.aprilaire.com Maker's own page checked Oct 1, 2026
    Page for the 1210 (per its URL): Comes with one AprilAire 210 MERV 11 Air Filter
  19. shop.aprilaire.com Maker's own page checked Oct 1, 2026
    Product 'AprilAire 210 MERV 11 Air Filter', SKUs 210, 210 02, 210 04, 210 08
  20. shop.aprilaire.com Maker's own page checked Oct 1, 2026
    Page for the 1620 (per its URL): Comes with one AprilAire 210 MERV 11 Air Filter
  21. shop.aprilaire.com Maker's own page checked Oct 1, 2026
    Page for the 2210 (per its URL): Also compatible with: 210 MERV 11 Air Filter 213CBN MERV 13 + Carbon Air Filter 216 MERV 16 Air Filter
  22. shop.aprilaire.com Maker's own page checked Oct 1, 2026
    Product 'AprilAire 216 MERV 16 Air Filter', SKUs 216, 216 02
  23. shop.aprilaire.com Maker's own page checked Oct 1, 2026
    Page for the 2216 (per its URL): Comes with one AprilAire 216 MERV 16 Air Filter
  24. shop.aprilaire.com Maker's own page checked Oct 1, 2026
    Product 'AprilAire 213CBN MERV 13+ Carbon Air Filter', SKUs 213CBN, 213C02
  25. shop.aprilaire.com Maker's own page checked Oct 1, 2026
    Product 'AprilAire UK213 (Replaces 213) MERV 13 TriPure Filter + Upgrade Rails', SKUs UK213, UK213 02, UK213 04
  26. shop.aprilaire.com Maker's own page checked Oct 1, 2026
    The AprilAire UK213 replaces the sunsetting AprilAire 213 Filter; 'Your next subscription will be the 3F213 - filter only'
  27. shop.aprilaire.com Maker's own page checked Oct 1, 2026
    Product 'AprilAire UK211 (Replaces 210) MERV 11 TriPure Filter + Upgrade Rails', SKUs UK211, UK211 02, UK211 04
  28. shop.aprilaire.com Maker's own page checked Oct 1, 2026
    The AprilAire UK211 replaces the sunsetting AprilAire 210 Filter; 'Your next subscription will be the 3F211 - filter only'
  29. shop.aprilaire.com Maker's own page checked Oct 1, 2026
    NEW AND IMPROVED U162 20 x 25 EASY INSTALL WHOLE-HOUSE AIR PURIFIER (LEFT RETURN DROP) with revolutionary new AprilAire 3F211 MERV 11 3" Air Filter

How often

  1. shop.aprilaire.com Maker's own page checked Oct 1, 2026
    Recommended Replacement Schedule: 12 Months
  2. shop.aprilaire.com Maker's own page checked Oct 1, 2026
    Recommended Replacement Schedule: 12 Months
  3. shop.aprilaire.com Maker's own page checked Oct 1, 2026
    Recommended Replacement Schedule: 6 Months
  4. shop.aprilaire.com Maker's own page checked Oct 1, 2026
    Recommended Replacement Schedule: 6 Months
  5. shop.aprilaire.com Maker's own page checked Oct 1, 2026
    LONG FILTER LIFE – One filter lasts up to 12 months
  6. shop.aprilaire.com Maker's own page checked Oct 1, 2026
    LONG FILTER LIFE – One filter lasts up to 12 months

Size

  1. shop.aprilaire.com Maker's own page checked Oct 1, 2026
    Nominal Measurements: 20H x 25W x 5D (inches) Actual Measurements: 21.07H x 25.24W x 5.19D (inches)
  2. shop.aprilaire.com Maker's own page checked Oct 1, 2026
    Nominal Measurements: 20H x 25W x 5D (inches) Actual Measurements: 21.07H x 25.24W x 5.19D (inches)
  3. shop.aprilaire.com Maker's own page checked Oct 1, 2026
    Nominal Measurements: 20H x 25W x 4D (inches) Actual Measurements: 20.6H x 26.63W x 4D (inches)
  4. shop.aprilaire.com Maker's own page checked Oct 1, 2026
    Nominal Measurements: 20H x 25W x 4D (inches) Actual Measurements: 20.6H x 26.63W x 4D (inches)
  5. shop.aprilaire.com Maker's own page checked Oct 1, 2026
    Nominal Measurements: 20H x 25W x 4D (inches) Actual Measurements: 20.6H x 26.63W x 4D (inches)
  6. shop.aprilaire.com Maker's own page checked Oct 1, 2026
    Nominal Measurements: 20H x 25W x 4D (inches) Actual Measurements: 20.6H x 25.66W x 4D (inches)
  7. shop.aprilaire.com Maker's own page checked Oct 1, 2026
    Nominal Measurements: 20H x 25W x 4D (inches) Actual Measurements: 21.44H x 27W x 3.68D (inches)
  8. shop.aprilaire.com Maker's own page checked Oct 1, 2026
    Nominal Measurements: 20H x 25W x 4D (inches) Actual Measurements: 21.44H x 27W x 3.68D (inches)

What's in it

  1. shop.aprilaire.com Maker's own page checked Oct 1, 2026
    MERV Rating: 13; Materials: Metal, Synthetic Fiber; INCLUDED IN THE BOX: (1) 213 Filter Media (4) Frame Supports (2) Frame Bases (1) Styrofoam Door Liner (1) Door Label
  2. shop.aprilaire.com Maker's own page checked Oct 1, 2026
    MERV Rating: 13; Materials: Metal, Synthetic Fiber; INCLUDED IN THE BOX: (1) 3F213 Filter Media (4) Frame Supports (2) Frame Bases (1) Styrofoam Door Liner (1) Door Label
  3. shop.aprilaire.com Maker's own page checked Oct 1, 2026
    MERV Rating: 13; Materials: Synthetic Fiber
  4. shop.aprilaire.com Maker's own page checked Oct 1, 2026
    MERV Rating: 11; Materials: Synthetic Fiber
  5. shop.aprilaire.com Maker's own page checked Oct 1, 2026
    MERV Rating: 16; Materials: Synthetic Fiber
  6. shop.aprilaire.com Maker's own page checked Oct 1, 2026
    MERV Rating: 13; Materials: Synthetic Fiber
  7. shop.aprilaire.com Maker's own page checked Oct 1, 2026
    MERV Rating: 13; Materials: Plastic, Synthetic Fiber
  8. shop.aprilaire.com Maker's own page checked Oct 1, 2026
    MERV Rating: 11; Materials: Plastic, Synthetic Fiber

Packs

  1. shop.aprilaire.com Maker's own page checked Oct 1, 2026
    Package sizes: 1-pack 213; 2-pack 213 02; 4-pack 213 04; 8-pack 213 08
  2. shop.aprilaire.com Maker's own page checked Oct 1, 2026
    Package sizes: 1-pack 210; 2-pack 210 02; 4-pack 210 04; 8-pack 210 08
  3. shop.aprilaire.com Maker's own page checked Oct 1, 2026
    Package sizes: 1-pack 216; 2-pack 216 02
  4. shop.aprilaire.com Maker's own page checked Oct 1, 2026
    Package sizes: 1-pack 213CBN; 2-pack 213C02
  5. shop.aprilaire.com Maker's own page checked Oct 1, 2026
    Package sizes: 1-pack UK213; 2-pack UK213 02; 4-pack UK213 04
  6. shop.aprilaire.com Maker's own page checked Oct 1, 2026
    Package sizes: 1-pack UK211; 2-pack UK211 02; 4-pack UK211 04

Other genuine options

  1. shop.aprilaire.com Maker's own page checked Oct 1, 2026
    2210 ships with 213; compatible 210 (MERV 11), 213CBN (MERV 13 + carbon), 216 (MERV 16); 'up to every 12 months'; '20 x 25' nominal
  2. shop.aprilaire.com Maker's own page checked Oct 1, 2026
    'AprilAire UK213 (Replaces 213) MERV 13 TriPure Filter + Upgrade Rails'; 'replaces the sunsetting AprilAire 213 Filter'; $125.99; rails are one-time