PadMatch / Every humidifier water panel and furnace filter size
- AprilAire 35
- 10 in W x 13 in H x 1.75 in D
- GeneralAire 990-13
- 9.75 in W x 12 in H x 1.5 in D
- AprilAire 35 fits
- AprilAire 350, 360, 560, 560A, 568, 600, 600A, 600M, 700, 700A, 700M, 760, 760A, 768
- GeneralAire 990-13 fits
- GeneralAire 709, 990, 1040, 1042, 1137, SL16
Whether the AprilAire 35 and GeneralAire 990-13 humidifier pads interchange.
The Aprilaire 35 and GeneralAire 990-13 are in the same GA35 cross-reference group, so a 990-13 is sold as a fit for Aprilaire 600 and 700 humidifiers. The 990-13 frame is 12 inches high against the Aprilaire panel's 13 inches.
The 990-13 is the cheaper cross-reference for an Aprilaire 35 slot, but confirm the shorter GeneralAire frame seats against the water tray in your unit before relying on it season to season.
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.
- AprilAire Water Panel 35AprilAire 35
- GeneralAire 990-13 evaporator padGeneralAire 990-13
- AprilAire 35 equivalentcross-references
Sources: AprilAire Water Panel 35 product page · AprilAire Water Panel Guide · General Filters GeneralAire 990-13 vapor pad · Industry evaporator-pad cross-reference chart (2J Supply)