We humidifier filter, made of natural fabric, multi-layer mesh surface to maximize the output of humidifier moisture, but also better filter Limescale, the upgraded material makes the filter more stable and filtering, can be used for a longer time. Including for Relion WF813 RCM-832 RCM-832N,for Pro Care PCWF813 PCWF-813 PCCM-832N PCCM- 840,for Equate EQ-2119-UL,for Sesame Street SH100 & SH200,also compatible with for Duracraft / Robitussin humidifier models DH-830, DH-832, AC-813, ACR-832, D13-C, HC-832, etc. Easy Installation,Remove the old filter cartridge in your humidifier, put this humidifiers filters in its place and adjust it well. Normal use 1-3 months need to be replaced with distilled water or cold water to fill the tank, not hot water. Color: white Material: wood pulp paper Package Contents: 10 x Filter Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm. Product Notes: Please allow a little manual errors.Due to the lighting of the photos and the difference of monitors, the pictures may not reflect the actual color of the real item. Please confirm acceptance before ordering. About Shipping: Please ensure your shipping informations are correct to avoid delivery issues. All orders are shipped within 3 days after payment. Delivery usually takes 8–12 days, The specific delivery time is depend on circumstances. If you have any questions during your purchase, feel free to contact us. We will respond you within 24 hours.