: value, very valuable, affordable choice of home humidifiers; You get 4 humidifier filters, 400% more than other filters that contain only one filter. Fits for Humidifier Models: SCM-1100, SCM-1701, SCM-1702, SCM-1761, SCM-1762, SCM-2409, SCM-4100. Compatible with for Humidifier Models: HF212, HLS140, HM1230, HM1245, HM1275, HM1280, HM1281, HM1285, HM1290, HM1295, HM1296, HM1297, HM1450, HM1600, HM1700, HM1701, HM1740, HM1760, HM1761, HM1910, HM2005, HM2025, HM2030, HM2408, HM2409. Replacement Humidifier Filter: In order to maintain the best filtering performance, increase the humidity in the dry season,and create a comfortable family environment, it is recommended to change every 1-2 months (depending on the local water quality environment) Colour:Black & White Material:composite materials Package Contents: 4 * Humidifier 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.