Volant 51921 Pre-Filter<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Pre-filter</li><li>Meets OEM filter standard</li><li>Washable</li><li>Improved efficiency</li></ul></div><img src="http://ecx.images-amazon.com/images/I/41q-Qn7L80L.jpg" noproxy>