PadMatch / Every humidifier water panel and furnace filter size
- Humidifier models
- Lennox WB2-17 / WB3-17 / HCWB3-17
- Correct pad
- Lennox X2661
- Pad dimensions
- 10 in W x 13 in H x 1.75 in D
- Replacement interval
- once per heating season
The correct replacement pad for the Lennox WB2-17 / WB3-17 / HCWB3-17, and the sizes that look right but are not.
- Lennox WB2-17
- WB3-17
- HCWB3-17
The Lennox WB2-17 and WB3-17 bypass humidifiers take the X2661 number 35 panel, a 10 by 13 pad that cross-references to the Aprilaire 35.
The Lennox Healthy Climate number 35 panel for the WB2-17 bypass humidifier. Lennox publishes it as a 10 by 13 panel that cross-references to the Aprilaire 35, so the two swap.
Find your model
Read the number stamped on the humidifier cabinet or printed on the old pad, then match it below. Confirm the frame size before buying a generic.
- Lennox Healthy Climate X2661 water panelLennox X2661
- Lennox X2661 equivalent and cross-referencescompatible and generic pads
- AprilAire 600 whole-house humidifierAprilAire 35
- AprilAire 500 whole-house humidifierAprilAire 10
- AprilAire 400 whole-house humidifierAprilAire 45
Sources: Lennox Healthy Climate #35 X2661 water panel (LennoxPros) ยท Lennox WB2 Healthy Climate bypass humidifier install guide (Lennox tech)