Berkey - Imperial Berkey with 2 Black Berkey Elements<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Ideal for small to medium homes， churches， and hospitals</li><li>Each filter has a life of 3，000 gallons</li><li>Storage capacity of about 4.5 gallons</li><li>Virtually no other system can duplicate this performance</li><li>Each filter is self steralizing and can be easily recleaned</li></ul></div><img src="http://ecx.images-amazon.com/images/I/41Jb2fHusUL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51R%2BrFBNvfL.jpg" noproxy>