Honeywell HC26E1004 Replacement Water Panel For Model HE200, or HE300, Humidifiers.

Replacement Water Panel Evaporator fits Honeywell Humidifier Models:
HE200, HE250, HE260A, HE265A, HE265B, HE300, HE300A HE360A, HE360B, HE365A, HE365B.

Keep in mind, your humidifier filter should be replaced annually to maintain adequate humidifier performance!