Water Filter Replacement For BB9-2® Black Activated Carbon Filters, Compatible With Berkey® Travel, Large, Royal, Crown Series, Pack Of 2

"Compatible Models: The fluoride water filter replacement for Berkey PF-2 Elements, compatible with Berkey Gravity-Fed Water Filter System, including Big, Travel, Royal, Imperial and Crown Series.","Natural Safety Material Carbonate Apatite: The fluoride water filter uses a natural mineral synthetic material called carbonate apatite as the filter medium, the content is as high as 100%, which is safer than similar alumina-containing filters.","Materials Certified for Safety: The authoritative third-party testing institution, recognized under the ILAC Mutual Recognition Arrangement (MRA) agreement, has issued a report stating that fluoride water filter achieves a fluoride removal rate of over 90%. It guarantees cleaner and safer drinking water, offering reassurance to individuals exposed to excessive fluoride levels.","Durable Life Span: To achieve optimum performance, we recommend you replace fluoride filter every 1,000 gallons per pair, which will vary based on water conditions. [Note that]! The primary function of the fluoride water filter is to enhance the taste and quality of water, rather than specifically reducing the total dissolved solids (TDS) content in the water.","Affordable and Cost-effetive: Why should we pay 4x the price just for a brand name? fluoride filters provide the same level of filtration and performance as brand-name filters, but at a more affordable price. By choosing us, you can enjoy the benefits of high-quality water filtration while keeping costs reasonable and cost-effective.","Note: Each fluoride water filter requires priming before use."