E-Z Flow Air Filter， MERV 4， 12 x 24 x 2-Inch， 12-Pack</br></br><div style="text-align:left"><b>[Product Information]</b><br><ul><li>Pack of 12 disposable UL Class II rated air filters designed for protection of furnace and central air units</li><li>MERV 4 rating: Removes household dust， pollen， and lint</li><li>Continuous chipboard design guards against corner separation while the one-sided metal media retainer adds to the filter strength</li><li>Each filter maintains efficiency for up to 30 days</li><li>Compatible with HVAC systems requiring filters sized 12" x 24" x 2"</li></ul></div></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br><img src='http://ecx.images-amazon.com/images/I/51MQKJn9mFL.jpg' noproxy></br><img src='http://ecx.images-amazon.com/images/I/51RHCIAUX%2BL.jpg' noproxy></br>