Phresh 701295 Intake Filter， 12-Inch by 20-Inch， 1200 CFM<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Keeps 99.9% of bugs， molds， pollen and dust from entering grow room</li><li>Use for intake filtering， scrubbing and low intensity exhaust filtering</li><li>Ultra light filters use advanced nano carbon felt technology</li><li>Maintains 90% of air flow</li><li>100% Recyclable/Made from 90% recycled materials</li></ul></div><img src="http://ecx.images-amazon.com/images/I/51AObOsQDmL.jpg" noproxy>