Hydrofast HF03 4-in-1 Filter Cartridge, for Hydrofast W100

Integrated design with 4-in-1 filtration materials effectively removes various contaminants and significantly improves water quality. Efficiently eliminates organic substances, residual chlorine, particulate heavy metals, and odors, enhancing the taste of the water. Specifically designed for the Hydrofast W100 water purifier. Recommended replacement every 9 months.