K&amp;N E-4551 High Performance Replacement Industrial Air Filter for Onan 140-2897<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Designed to increase horsepower and acceleration</li><li>Designed for industrial applications</li><li>High air flow with excellent filtration</li><li>Washable and reusable air filter</li><li>One year limited warranty</li></ul></div><img src="http://ecx.images-amazon.com/images/I/51j1aXIAPyL.jpg" noproxy>