Overview Material : Activated Carbon,Alumina Product Dimensions : 2.9"D x 5.7"W x 6.4"H Item Weight : 0.61 Kilograms External Testing Certification : Lead-Free & Food-Grade Material Product Benefits : Reduces Fluoride About this item ๐๐จ๐ฆ๐ฉ๐๐ญ๐ข๐๐ฅ๐ ๐ฆ๐จ๐๐๐ฅ๐ฌ: Replacement for Berkey PF-2 Fluoride Reduction Elements and Big, Travel, Light, Royal, Imperial, Crown Berkey Gravity-Fed Water Filter. This filter is not sourced or sponsored by original brand. AQUACREST is an independent brand. ๐๐ข๐ ๐ก-๐๐๐๐ข๐๐ข๐๐ง๐๐ฒ ๐๐ข๐ฅ๐ญ๐ซ๐๐ญ๐ข๐จ๐ง: It can protect you from harmful spring and well water by effectively reducing fluoride.(Tested by third party laboratory.) ๐๐๐๐ ๐ฆ๐๐ญ๐๐ซ๐ข๐๐ฅ: This filter uses granular activated carbon and activated alumina to improve the water taste and to ensure contaminants will not leach back into water. ๐๐จ๐ง๐ ๐๐ซ ๐ฌ๐๐ซ๐ฏ๐ข๐๐ ๐ฅ๐ข๐๐: To achieve optimum performance, we recommend you replace fluoride filter every 1,000 gallons per pair, which will vary based on water conditions. ๐๐ฎ๐๐ ๐๐ผ ๐ถ๐ป๐๐๐ฎ๐น๐น: Easily connect the replacement filter of black and fluorine-reducing filter, you can enjoy clean and fresh water.