Safety Works 817667 Replacement Cartridges for Multi-Purpose Respirator ( Set of 2 Catridges)<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Compatible with Multi-Purpose Respirator</li><li>Lightweight cartridges are easy to block gfor fit checks.</li><li>Patented cartridges are the most widely approved on the market</li></ul></div><img src="http://ecx.images-amazon.com/images/I/31ZX726DZWL.jpg" noproxy>