Berkey BB9-2 Replacement Black Purification Elements， Set of 2</br></br><div style="text-align:left"><b>[Product Information]</b><br><ul><li>Includes: Two Replacement Filters</li><li>Capacity: 6000 Gallons</li><li>Cleanable， Self-Sterilizing Filters</li><li>Each black element has a life of 3，000 gallons， or 6，000 gallons for the pair. (less than 2 cents per gallon of water).</li><li>Original factory replacement element for all Berkey water filter systems.</li></ul></div></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br><img src='http://ecx.images-amazon.com/images/I/31BXDTDEJcL.jpg' noproxy></br>