4 Pack Gravity Water Filter Replacement,Gravity Water Filter Replacement for Berkey® BB9-2® Black Filters & PF-2® Fluoride Filters, Compatible with Berkey® Filtration System

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About This Widely compatible:Gravity water filters for Berkey water filters are also compatible with Berkey Big, Travel, Royal, Imperial, Crown, and Light series gravity filtration systems. High-Efficiency Purification:Black carbon filters are made of Silver Infused Coconut Shell Activated Carbon, and the upgraded White fluoride filters use a natural mineral synthesis material Carbonate Apatite as the filter medium,Not only effectively absorbs 99% of residual chlorine and fluoride, but also effectively filters out various impurities such as sand, rust, sediment, and unpleasant odors, allowing you to enjoy clean and healthy water at all times! Materials Certified for Safety:The water filters are NSF/ANSI 42 certified, ensuring a safe water experience for your family. Durable Life Span:For optimal performance of the water filter,we recommend replacing the black carbon filter every 6,000 gallons per pair and the white fluoride filter every 1,000 gallons per pair (Filter performance may vary based on local water conditions). Please note that you have to totally submer Note: Please connect the faucet to flush the black carbon filter and fluoride filter for at least 1 minute before use. In order to wash loose activated carbon and natural mineral synthesis material powder away in advance. Overview Material : Plastic Product Dimensions : 9.3"D x 2.3"W x 2.3"H Item Weight : 1.4 Pounds External Testing Certification : NSF Product Benefits : Removes Impurities Show more