Designed to fit: Compatible with Evaporative Humidifier Models: EV100, EV200, EVDC300, EVDC500, Evap2, and Evap40 (NOT for Evap3) Package includes Four (4) MD1-0034 Evaporative Humidifier Replacement Wicks Premium Replacement Wicks: Made of premium materials, Replace at recommended intervals for best performance Captures minerals & pollutants from humidifier water and helps prevent white dust,make your humidifier work better. Material: wood pulp paper colour: White Dimensions: about 240 x 186 x 25mm Note: Pay attention to the model when placing an order, and check the size! Package Contents: 4 x filter elements 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. Designed to fit: Compatible with Evaporative Humidifier Models: EV100, EV200, EVDC300, EVDC500, Evap2, and Evap40 (NOT for Evap3) Package includes Four (4) MD1-0034 Evaporative Humidifier Replacement Wicks Premium Replacement Wicks: Made of premium materials, Replace at recommended intervals for best performance Captures minerals & pollutants from humidifier water and helps prevent white dust,make your humidifier work better.