Omnipure Q5621 Quick-Change Carbon Block Filter<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Carbon Type: Block with Cyst and Lead Reduction</li><li>Service life: 3，000 Gallons (1 year maximum)</li><li>Filter Size: 2.5" Diameter x 12" Length</li></ul></div><img src="http://ecx.images-amazon.com/images/I/31bWXvlMgrL.jpg" noproxy>