NSF/ANSI 42&372 Certified Water Filter,Gravity Water Filter Replacement For Berkey® BB9-2® Black Purification Elements And Berkey® Gravity Filter System, 4 Pack

"Compatible model : Blackwater filter can replace Berkey BB9-2 water filter, Berkey gravity filtration system, including Travel, Big, Royal, Imperial, Crown series. Precision designed washers are securely attached to wing nuts to prevent leakage. Connect the filter to the faucet and rinse for 1 minute before use. Note: If the faucet is not fully compatible, splashes may occur but will not affect the product. ","To get the best performance out of your water filter, extend the life of your machine by replacing filters every 6,000 gallons.","Water filter only uses high quality coconut grade activated carbon filter element to significantly reduce harmful substances and improve the taste of water.","Using a pair of black elements can hold 6,000 gallons of water;To protect the water filter, do not use it with brine or softened water.","Carefree Warranty \u0026 Fast Customer Service : Every efforts to improve your shopping experience. If you need assistance, including pre-order / after- service, please do not hesitate to contact us."