Smilie Cut-to-Fit Synthetic Air Filter， MERV 4， 20 x 30 x 1-Inch， 6-Pack</br></br><div style="text-align:left"><b>[Product Information]</b><br><ul><li>Pack of 6 reusable air filters made of synthetic fibers</li><li>MERV 4 rating: Removes household dust， pollen， and lint</li><li>Air filter can be cut to size using heavy shear or a razor knife</li><li>Filter maintains efficiency for up to 1 year</li><li>Ideal replacement for hard to find specialty filters measuring 20" x 30" or smaller</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/51fV%2BYwRQKL.jpg' noproxy></br>