The 4-Pack BestAir ES12-2 Replacement Humidifier Wick Filter is specifically designed for the Kenmore HDC-12 model. Made in the United States by BestAir, these humidifier filters are essential for maintaining indoor air quality. With a pack of 4 filters, you can easily replace old or worn-out filters to ensure your humidifier continues to function effectively. This product is a reliable and high-quality solution for your home improvement needs.