Lennox X2661 - Healthy Climate #35 Humidifier Water Panel

The Lennox Healthy Climate X2661 water panel is compatible with Lennox humidifier models HCWB3-17, HCWB3-17K, HCWB3-17A and HCWB3-17AK, as well as Aprilaire models 350, 360, 600, 600M, 700, and 700M, and Honeywell models HE200, HE250, HE260A, HE260B, HE265, HE280, HE300, HE360A, HE360B, and HE365. 

Approximate size: 13" x 10" x 1.75"

The Lennox X2661 water panel should be replaced 1-2 times per humidification season depending on usage and water quality.