Holmes "E" Humidifier Filter 3 Pack, HWF100-UC3

Improves efficiency of the humidifier
Extended filter life with help of reinforce outer layer
Extends product life as less mineral deposits will attach to the unit
Install at the beginning of each season, replacing every 2 to 4 weeks or as needed
Works with models HM630, SCM630, BCM646, HM7808, SCM7808, BCM7205, HCM730, BCM7305, HCM729G