Fits checked Oct 1, 2026 · How we check

Fits these models

Part numbers

Genuine part
10
Packs
10 02 (2-pack), 10 04 (4-pack), 10 10 (10-pack)
How often
Replace at least once a year (manufacturer owner's manual)
What is in it
evaporative water panel (aluminum mesh frame, synthetic fiber, ceramic-type coating)
Size
10 x 10 x 2 in nominal (9.75 x 9.5 x 1.75 actual)

Sources

  • Which filter fits shop.aprilaire.com Maker's own page checked Oct 1, 2026
    AprilAire 10 Replacement Water Panel For 110, 220, 500, 500A, 500M, 550, 550A, and 558 Whole-House Humidifiers ... Compatible Models: 110, 220, 500, 500A, 500M, 500MKZ, 500KZ, 550, 550A, 558
  • How many storage.googleapis.com Maker's own page checked Oct 1, 2026
    AprilAire owner's manual B2209190D (09.23), dealer-hosted copy, PDF p10: 'Replace the Water Panel (Water Panel 35 for Models 600 & 600M and Water Panel 10 for Models 500 & 500M) with a new genuine AprilAire Water Panel'
  • How often storage.googleapis.com Maker's own page checked Oct 1, 2026
    AprilAire owner's manual B2209190D (09.23), dealer-hosted copy, PDF p8: 'we recommend that you replace the Water Panel in your AprilAire Humidifier at least annually with the exception of Models 400 and 400M'
  • Model variants shop.aprilaire.com Maker's own page checked Oct 1, 2026
    Compatible Models: 500, 500A, 500M; 'AprilAire recommends replacing the humidifier filter and water panel assembly once annually'
  • Size shop.aprilaire.com Maker's own page checked Oct 1, 2026
    Materials: Aluminum, Synthetic Fiber Nominal Measurements: 10H x 10W x 2D (inches) Actual Measurements: 9.75H x 9.5W x 1.75D (inches)
  • Packs shop.aprilaire.com Maker's own page checked Oct 1, 2026
    Package Size 1-pack, 2-pack, 4-pack, 10-pack; SKUs '10', '10 02', '10 04', '10 10'
Show all 12 sources

Which filter fits

  1. shop.aprilaire.com Maker's own page checked Oct 1, 2026
    AprilAire 10 Replacement Water Panel For 110, 220, 500, 500A, 500M, 550, 550A, and 558 Whole-House Humidifiers ... Compatible Models: 110, 220, 500, 500A, 500M, 500MKZ, 500KZ, 550, 550A, 558
  2. shop.aprilaire.com Maker's own page checked Oct 1, 2026
    AprilAire 10 Replacement Water Panel
  3. appliancefactoryparts.com Maker's own page checked Oct 1, 2026
    AprilAire owner's manual B2203620A for Models 110, 112, 220, 224, 350, 360, 440, 445, 448, 558, 560, 568, 760 & 768, dealer-hosted copy (Appliance Factory Parts), PDF p14: 'replace with a new Water Panel evaporator (Stock No. 10 for Model 220 and Stock No. 12 for Model 224)'
  4. shop.aprilaire.com Maker's own page checked Oct 1, 2026
    INCLUDED IN THE BOX: 500 Humidifier ... Model 10 Water Panel
  5. appliancefactoryparts.com Maker's own page checked Oct 1, 2026
    AprilAire owner's manual DP #10003882 (5.9.00) for Models 550 and 560, dealer-hosted copy (Appliance Factory Parts), PDF p12: 'Water Panel evaporator (Stock No. 10 for Model 550 and Stock No. 35 for Model 560)'
  6. appliancefactoryparts.com Maker's own page checked Oct 1, 2026
    AprilAire owner's manual B2203620A for Models 110, 112, 220, 224, 350, 360, 440, 445, 448, 558, 560, 568, 760 & 768, dealer-hosted copy (Appliance Factory Parts), PDF p13: 'Inspect Water Panel evaporator and replace with a new Water Panel evaporator (Stock No. 10 for Model 110 and Stock No. 12 for Model 112)'

How many

  1. storage.googleapis.com Maker's own page checked Oct 1, 2026
    AprilAire owner's manual B2209190D (09.23), dealer-hosted copy, PDF p10: 'Replace the Water Panel (Water Panel 35 for Models 600 & 600M and Water Panel 10 for Models 500 & 500M) with a new genuine AprilAire Water Panel'
  2. appliancefactoryparts.com Maker's own page checked Oct 1, 2026
    AprilAire owner's manual B2203620A for Models 110, 112, 220, 224, 350, 360, 440, 445, 448, 558, 560, 568, 760 & 768, dealer-hosted copy (Appliance Factory Parts), PDF p19 (Models 558-560-568): 'Slide the Water Panel evaporator (7) out from the plastic Scale Control Insert ... substitute a new one'

How often

  1. storage.googleapis.com Maker's own page checked Oct 1, 2026
    AprilAire owner's manual B2209190D (09.23), dealer-hosted copy, PDF p8: 'we recommend that you replace the Water Panel in your AprilAire Humidifier at least annually with the exception of Models 400 and 400M'

Model variants

  1. shop.aprilaire.com Maker's own page checked Oct 1, 2026
    Compatible Models: 500, 500A, 500M; 'AprilAire recommends replacing the humidifier filter and water panel assembly once annually'

Size

  1. shop.aprilaire.com Maker's own page checked Oct 1, 2026
    Materials: Aluminum, Synthetic Fiber Nominal Measurements: 10H x 10W x 2D (inches) Actual Measurements: 9.75H x 9.5W x 1.75D (inches)

Packs

  1. shop.aprilaire.com Maker's own page checked Oct 1, 2026
    Package Size 1-pack, 2-pack, 4-pack, 10-pack; SKUs '10', '10 02', '10 04', '10 10'