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Lennox · humidifier

Lennox HCWB2-12 replacement filter

Use part X2660. Replace annually or if performance drops.

The filter that fits

Maker lists this model

Lennox X2660 (#10) water panel

Healthy Climate #10 Replacement Humidifier Water Panel

Part number
X2660
How many
1 per unit
How often
Replace annually or if performance drops
Size
10 x 9.75 x 1.75 in

The maker does not say how many pads the unit holds; one is assumed.

Buy X2660 (#10) water panel on AmazonManufacturer page

Opens an Amazon search for Lennox X2660 (#10) water panel. Check the listing says X2660.

See the sources

Does your exact model share this filter?

Lennox labels several versions of the HCWB2-12. Check the label on your unit.

  • HCWB2-12 takes X2660
  • HCWB2-12A same filter

Look-alike models that take a different filter

The HCWB2-17 takes the #35 panel X2661.

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 lennoxpros.com Maker's own page checked Oct 1, 2026
    Lennox X2660, Healthy Climate #10 Replacement Humidifier Pad ... Replacement Humidifier Pad for Healthy Climate Humidifiers: HCWB2-12, HCWB2-12A, HCWB3-12, HCWB3-12A
  • How often lennox.com Maker's own page checked Oct 1, 2026
    Lennox Healthy Climate humidifier operating manual (form 10009367, 04/2011; covers HCWB3-12, -12K, -12A, -12AK, HCWB3-17, -17K, -17A, -17AK, HCWP3-18 and HCWP3-18A), linked from lennox.com's current HCWB17 and HCWP18 pages, PDF p4: 'For best performance, you should replace the humidifier pad in your humidifier at least annually' ... 'Replace Humidifier Pad annually or if performance drops'
  • Size lennoxpros.com Maker's own page checked Oct 1, 2026
    Additional Information 10 x 9.75 x 1.75"; Packaged 10/Case
Show all 4 sources

Which filter fits

  1. lennoxpros.com Maker's own page checked Oct 1, 2026
    Lennox X2660, Healthy Climate #10 Replacement Humidifier Pad ... Replacement Humidifier Pad for Healthy Climate Humidifiers: HCWB2-12, HCWB2-12A, HCWB3-12, HCWB3-12A
  2. lennox.com Maker's own page checked Oct 1, 2026
    Lennox Healthy Climate humidifier operating manual (form 10009367, 04/2011; covers HCWB3-12, -12K, -12A, -12AK, HCWB3-17, -17K, -17A, -17AK, HCWP3-18 and HCWP3-18A), linked from lennox.com's current HCWB17 and HCWP18 pages, PDF p4: 'Replace Humidifier Pad annually or if performance drops (Catalog No. X2660 for Models HCWB3-12, HCWB3-12K, HCWB3-12A and HCWB3-12AK, and Catalog No. X2661 for Models HCWB3-17 ...)'

How often

  1. lennox.com Maker's own page checked Oct 1, 2026
    Lennox Healthy Climate humidifier operating manual (form 10009367, 04/2011; covers HCWB3-12, -12K, -12A, -12AK, HCWB3-17, -17K, -17A, -17AK, HCWP3-18 and HCWP3-18A), linked from lennox.com's current HCWB17 and HCWP18 pages, PDF p4: 'For best performance, you should replace the humidifier pad in your humidifier at least annually' ... 'Replace Humidifier Pad annually or if performance drops'

Size

  1. lennoxpros.com Maker's own page checked Oct 1, 2026
    Additional Information 10 x 9.75 x 1.75"; Packaged 10/Case