Authentic Black Elements/Filters (BB9-2 X 2) (Set Of 4 Total)

"4 AUTHENTIC BLACK ELEMENTS BB9-2 REPLACEMENT ELEMENTS FOR GRAVITY-FED WATER FILTER SYSTEMS- Black Elements can be used with Big , Light, Crown , Imperial , Royal , Go and Travel Systems.","INDEPENDENT TESTING- Black Elements (the original BB9-2) are composed of a unique, proprietary blend of multiple media types backed by testing from accredited, third-party labs. Black Elements remove or dramatically reduce over 250+ typical contaminants that could be present in freshwater sourcesno electricity, tools, or plumbing are required.","INCLUDES AUTHENTIC BLACK ELEMENTS (THE ORIGINAL BB9-2)- Don't fall for lookalike filters that use our BB9-2 model number or trademarks in their titles or product descriptions to legitimize their brand as replacements or \"compatible\", when they are not. Black Elements are designed to work synergistically and target specific contaminants that far exceed the reduction capabilities of black filters solely composed of activated carbon.","ECONOMICAL, LONG-LASTING- Black Elements provide filtered water for just pennies per gallon. Each pair of Black Elements lasts for up to 6,000 gallons before replacement is recommended. Elements may require replacement sooner based upon the quality of influent water.","THE GOLD STANDARD IN GRAVITY-FED WATER FILTRATION- Authentic Black Elements are capable of greater contaminant reduction and a longer lifespan than virtually any of the other filter elements on the market."