USWF Replacement for Berkey BB9-2 Black Filters, Gravity-fed Carbon Filter Elements, Fits Berkey Systems, USWF Gravity Water Filter System, and more. NSF/ANSI 372 Certified (Pack of 2)

The USWF black carbon gravity filters can be used as a replacement for the Berkey BB9-2 and fit many other brand's gravity systems. Designed for use in the USWF gravity filtration system these replacement filter cartridges also fit Big Berkey, Travel, Royal, Imperial, and Crown series as well as the Waterdrop King Tank, Purewell, Alexapure Pro, and Doulton W9361122, & W9361123 systems. This set of filters can filter up to 6,000 gallons, with each single filter element filtering 3,000 gallons. Can be combined with PF-2 Fluoride filters for additional filtration performance. USWF Gravity Water Filtration Systems are a practical and cost-effective water filtration solution. By utilizing the power of gravity to draw unfiltered water from the top chamber into the bottom chamber, this system does not require any electricity, and does not need to be connected to any permanent water supply. Because of its simplicity and convenience it is the perfect water filter for outdoor camping, RVing, off-grid homesteads, but also works on any kitchen counter.