MD1-0002 Replacement Humidifier Wick Filters 2-Pack At 1.5" thick, these Vornado filters are designed to fit all models of Vornado humidifiers. The filter must have the correct height, width, thickness, and material for maximum performance. Competitors often advertise their filters will work with Vornado humidifiers but these filters don't always fit properly, therefore, the humidifier will not work effectively. Vornado wicks are developed from the highest quality materials that work to absorb the maximum amount of water while filtering the circulating air. Competitor brands are made of different materials not designed for Vornado humidifiers. For best performance, only use genuine Vornado humidifier filters and replace at the recommended intervals. Features Contains two 2 genuine Vornado Wick Filters Fits all Vornado evaporative humidifiers 1.5" thick and made of high-quality materials Replace at recommended intervals for best performance Keep stock on hand for dry months