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AprilAire · media air cleaner · media air cleaner cabinet

AprilAire U226 replacement filter

Use part UK213, or any one of UK211. Lasts up to 12 months.

Any one of these fits · first listed

Maker lists this model

AprilAire UK213 MERV 13 + rails

AprilAire UK213 (Replaces 213) MERV 13 TriPure Filter + Upgrade Rails

Part number
UK213
How many
1 per unitpacks: UK213 02 (2), UK213 04 (4)
How often
Lasts up to 12 months
Size
20 x 25 x 4 in20 x 25 x 4 in nominal (21.44 x 27 x 3.68 actual)

AprilAire lists the U226 on the UK213 page (MERV 13); the UK213 bundles one-time upgrade rails that older cabinets need, and the filter-only refill is the 3F213. AprilAire's pages do not say how many filters the cabinet holds; we list one.

Buy UK213 MERV 13 + rails on AmazonManufacturer page

Opens an Amazon search for AprilAire UK213 MERV 13 + rails. Check the listing says UK213.

See the sources

Compare the 2 options

The U226 holds one filter at a time. Any one of these fits; AprilAire lists them in this order.

FilterGradeSizeHow oftenBuy
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

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: 1210, 1620, 2120, 2200, 2210, 2216, 3210, 4200, U121, U223, U226, U162, U172
  • How often shop.aprilaire.com Maker's own page checked Oct 1, 2026
    LONG FILTER LIFE – One filter lasts up to 12 months
  • Size 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 shop.aprilaire.com Maker's own page checked Oct 1, 2026
    MERV Rating: 13; Materials: Plastic, Synthetic Fiber
  • Packs shop.aprilaire.com Maker's own page checked Oct 1, 2026
    Package sizes: 1-pack UK213; 2-pack UK213 02; 4-pack UK213 04
Show all 15 sources

Which filter fits

  1. 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
  2. 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
  3. 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
  4. 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'
  5. 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
  6. 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'
  7. 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
    LONG FILTER LIFE – One filter lasts up to 12 months
  2. 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 4D (inches) Actual Measurements: 21.44H x 27W x 3.68D (inches)
  2. 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: Plastic, Synthetic Fiber
  2. 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 UK213; 2-pack UK213 02; 4-pack UK213 04
  2. shop.aprilaire.com Maker's own page checked Oct 1, 2026
    Package sizes: 1-pack UK211; 2-pack UK211 02; 4-pack UK211 04