[Compatible Models]The humidifier replacement filters are compatible with Kaz WF813; ReliOn WF813 RCM-832 RCM-832N; ProCare WF813 RWF13 PCWF813 PCWF-813 PCCM-832N PCCM-840; Equate EQWF813 EQ-2119-UL; Sesame Street SH100 & SH200; also compatible with Duracraft / Robitussin humidifier models DH-830, DH-832, AC-813, ACR-832, D13-C, HC-832, etc. [What You Get]4 Pack WF813 Humidifier Filter Replacement for ReliOn RCM-832 RCM-832N, ProCare PCWF813 PCWF-813 PCCM-840 PCCM-832N, Equate EQWF813 EQ 2119-UL Cool Mist Humidifier Filters. [High Quality]Made of environmentally friendly professional import filter paper to ensure optimal performance and a healthy lifestyle. [Easy To Install]Simply take off your old filter and put this one in its place. For best results, we advise you to fill the humidifier tank with distilled water instead of hard water. Material: Filter cotton colour: white Package Contents: 4 x humidifier filter