Compatible for WF813 ReliOn Humidifier Wick Filter by CFS;

This ReliOn humidifier filter features Honeycomb filtration to trap mineral pollutants found in water and help prevent them from entering your home and fits models RCM-832 and RCM-832N. The filter measures approximately 4 x 6 x 1 1/2 and has 2 filters per box. For optimum performance, replace filter at the beginning of each season or every 2 months depending on use.