The Berkey PF-2 Fluoride Water Filters are designed specifically for Berkey systems, featuring a white color and made with BPA-free polypropylene material. This set includes two filters, using gravity filtration method to remove fluoride contaminants. Manufactured in the United States, these filters are suitable for Berkey models and ensure clean and safe water for your household. With the Berkey brand known for quality and reliability, these filters are a practical choice for improving the taste and quality of your water.