Cat Mate Replacement Filter Cartridges 2-Count<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Two packages of two cartridges which = four count</li></ul></div><img src="http://ecx.images-amazon.com/images/I/51iNFMjQw5L.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41I47l9x4yL.jpg" noproxy>