Introducing our upgraded replacement humidifier wicking filter designed for Honeywell models HAC-504, HAC-504AW, HAC504V1, HCM 350, HCM350W, and HCM-315T. As a factory-direct product, we ensure top-quality craftsmanship and functionality with this filter. It efficiently captures minerals and impurities from water, providing clean moisture for a healthier indoor environment. This filter offers improved performance, maximizing humidity levels for enhanced comfort and respiratory benefits. Experience the reliability and peace of mind that comes with a factory-made product. Upgrade your humidifier today with our superior wicking filter!