The Compatible HAC-504 Humidifier Wick Filter Replacement fits several models of Honeywell, KAZ, Vicks, and Robitussin humidifiers. This humidifier wick filter has dimensions of approximately 3-3/4"x 5-3/4"x 9-1/4"
- HCM-300 Series: HCM-300T, HCM-315T, HCM-350
- HCM-500 Series:HCM-530, HCM-535, HCM-540, HCM-550, HCM-560, HCM-551
- HCM-600 Series: HCM-630, HCM-631, HCM-635, HCM-645, HCM-650
- HCM-1000 Series: HCM-1000C, HCM-1010.
- HCM-2000 Series: HCM-2000C, HCM-2001, HCM-2002, HCM-2020, HCM-2050
- Enviracaire Model: ECM-250i