Md1-0034 Replacement Humidifier Wick Filter Compatible For Evaporative Humidifier Models Evap40,eva f26Compatible Models: Evaporative Humidifier Models: EV100, EV200, EVDC300, EVDC500, Evap2 and Evap40 (Not for Evap3)Kit includes four (4) MD1-0034 evaporative humidifier replacement wicksPremium Replacement Core:Made of high-quality materials, recommended for replacement at intervals for optimal performanceCapture minerals and contaminants from humidifier water, help prevent white dust and make your humidifier work betterColour:WhiteMaterial:filter cottonSize:24x18.5cmPackage Contents:4 * humidifier filterOnly 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.