PadMatch / Every humidifier water panel and furnace filter size
- GeneralAire 990-13
- 9.75 in W x 12 in H x 1.5 in D
- Lennox X2661
- 10 in W x 13 in H x 1.75 in D
- GeneralAire 990-13 fits
- GeneralAire 709, 990, 1040, 1042, 1137, SL16
- Lennox X2661 fits
- Lennox WB2-17, WB2-17A, WB3-17, WB3-17A, HCWB3-17, HCWB3-17A, WP2-18, WP2-18A
Whether the GeneralAire 990-13 and Lennox X2661 humidifier pads interchange.
The GeneralAire 990-13 and the Lennox X2661 sit in the same GA35 cross-reference group and cover the same humidifier slot, but the GeneralAire 990-13 measures 9.75 in W x 12 in H x 1.5 in D while the Lennox X2661 measures 10 in W x 13 in H x 1.75 in D.
Because the frame sizes differ slightly, seat the replacement fully against the water tray so water wicks through the pad rather than running down a gap at the edge. Either one fits the same humidifiers, but a pad that sits loose will drip past.
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.
- GeneralAire 990-13 evaporator padGeneralAire 990-13
- Lennox Healthy Climate X2661 water panelLennox X2661
- GeneralAire 990-13 equivalentcross-references
Sources: General Filters GeneralAire 990-13 vapor pad · Industry evaporator-pad cross-reference chart (2J Supply) · Lennox Healthy Climate #35 X2661 water panel (LennoxPros)