Performance Water Filtration for Cleaner, BetterTasting Water Precision Filtration up to 1 Micron: Constructed with coconut shell activated carbon, this filter delivers exceptional filtration accuracy at 1 micron. Efficiently removes sand, rust, sediment, bad taste, and effectively absorbs over 99% of residual chlorine to greatly improve water clarity and freshness. Compatible with Berkey Gravity Filter Systems: Designed as a replacement for the BB92 water filter, fitting Berkey Travel, Big, Royal, Imperial, and Crown Series models. The precision washer and wing nut design ensures a secure connection to prevent leakage. No priming required—install and use immediately without the hassle of preflushing or slow flow rates. Certified Safe Materials: Made from natural filtration media using advanced drilled carbon sintering technology. Certified by NSF/ANSI 42 standards for safety, ensuring your water remains from harmful contaminants and unpleasant odors. Important Installation Note: Before installation, soak and rinse the filter to remove any residual manufacturing dust. This product is intended to improve the taste and quality of water, not to specifically lower total dissolved solids (TDS) levels. LongLasting Performance: Each filter offers a service life of up to 6,000 gallons, depending on the quality of the source water. For function, completely submerge the carbon filter about once a week to maintain proper siphon performance in drip systems. Ideal Uses: Home use for clean, freshtasting drinking water from your Berkey system. Outdoor and travel applications where reliable filtration is essential, such as camping or RV trips. Emergency preparedness to ensure safe drinking water in situations where water quality is uncertain. Upgrade your water filtration today with a dependable solution that combines precision performance, certified safety, and longlasting value.