Briggs &amp; Stratton 393957S Round Air Filter Cartridge<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Individually packaged part</li><li>Use on 7-18 HP horizontal engines</li><li>Uses 271794S pre-cleaner</li><li>Briggs &amp; Stratton 393957S</li></ul></div><img src="http://ecx.images-amazon.com/images/I/51986L3bTgL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51k-nirO2wL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51vU0Kg%2BuDL.jpg" noproxy>