NSF 42 Certified Carbon Water Filter Replacement, BB9-2 Black Filter Elements, Compatible With Stainless Steel Countertop Water Purification Berkey Gravity Water Filter System, Pack Of 2

"Safe material: The filter uses natural coconut activated carbon, ensuring excellent reduction performance that will not leach contaminants back into your water.","Efficiency filtration: Efficiently reduces up to 99% of chlorine, heavy metals, taste and odor, sediments, large particles and other contaminants. Clean water can be enjoyed outdoors and home at any time.","Easy to install: For detailed instruction, please kindly refer to the Instruction Manual, and can fit the water filter system working in pair with fluoride filters.","Compatible with: The water filter can be replacement for Black Berkey Elements and Travel, Light, Big, Royal, Imperial, Crown Berkey series, our Gravity Water Filter System series, and other brand Gravity Water Filter System series .","Longer service life: To prolong the life of your appliance and achieve optimum performance, we recommend you replace the filter every 6,000 gallons per pair, which will vary based on water conditions."