Fits checked Oct 1, 2026 · How we check
Filter Fit Finder
Menu

AprilAire · media air cleaner filter

AprilAire UK111 MERV 11 + rails

AprilAire UK111 (Replaces 110) MERV 11 TriPure Filter + Upgrade Rails. Part UK111. Lasts up to 12 months. Fits 2 models.

Buy UK111 MERV 11 + rails on AmazonManufacturer page

Opens an Amazon search for AprilAire UK111 MERV 11 + rails. Check the listing says UK111.

Fits these models

Part numbers

Genuine part
UK111
Replaces
110
Packs
UK111 02 (2-pack)
How often
Lasts up to 12 months
What is in it
MERV 11 TriPure 3-inch filter; one-time upgrade rails
Size
16 x 20 x 4 in nominal (17.29 x 21.75 x 3.68 actual)

Sources

  • Which filter fits shop.aprilaire.com Maker's own page checked Oct 1, 2026
    Compatible Models: 1110, U111
  • How many shop.aprilaire.com Maker's own page checked Oct 1, 2026
    INCLUDED IN THE BOX: (1) 1110 Air Purifier (1) 110 Air Filter
  • 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: 16H x 20W x 4D (inches) Actual Measurements: 17.29H x 21.75W x 3.68D (inches)
  • What's in it shop.aprilaire.com Maker's own page checked Oct 1, 2026
    MERV Rating: 11; Materials: Plastic, Synthetic Fiber
  • Packs shop.aprilaire.com Maker's own page checked Oct 1, 2026
    Package sizes: 1-pack UK111; 2-pack UK111 02
Show all 9 sources

Which filter fits

  1. shop.aprilaire.com Maker's own page checked Oct 1, 2026
    Compatible Models: 1110, U111
  2. shop.aprilaire.com Maker's own page checked Oct 1, 2026
    Product 'AprilAire UK111 (Replaces 110) MERV 11 TriPure Filter + Upgrade Rails', SKUs UK111, UK111 02
  3. shop.aprilaire.com Maker's own page checked Oct 1, 2026
    The AprilAire UK111 replaces the sunsetting AprilAire 110 Filter; 'Your next subscription will be the 3F111 - filter only'

How many

  1. shop.aprilaire.com Maker's own page checked Oct 1, 2026
    INCLUDED IN THE BOX: (1) 1110 Air Purifier (1) 110 Air Filter
  2. shop.aprilaire.com Maker's own page checked Oct 1, 2026
    INCLUDED IN THE BOX: (1) U111 Air Purifier (1) 3F111 Air Filter; Filter Nominal Dimensions (H x W): 16 x 20 (inches)

How often

  1. 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: 16H x 20W x 4D (inches) Actual Measurements: 17.29H x 21.75W x 3.68D (inches)

What's in it

  1. 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 UK111; 2-pack UK111 02