Sterling Seal KP-5251104791 Purolator Key Pleat Extended Surface Pleated Air Filter， Mechanical MERV 8， 19.50" Height， 1.75" Thick， 24.50" Width (Pack of 12)</br></br><div style="text-align:left"><b>[Product Information]</b><br><ul><li>Mechanical MERV8 filter; Air flow capacity listed at 500 FPM</li><li>Low initial resistance for energy savings， quality engineered and consistently produced</li><li>Single piece beverage board die cut frame with structural integrity</li><li>ACTUAL SIZE: 19-1/2" Width X 24-1/2" Height X 1-3/4" Thick， NOMINAL SIZE: 20" Width X 25" Height X 2" Thick</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/418-YX83fbL.jpg' noproxy></br><img src='http://ecx.images-amazon.com/images/I/51B06gYexxL.jpg' noproxy></br><img src='http://ecx.images-amazon.com/images/I/51z8wOLUNmL.jpg' noproxy></br><img src='http://ecx.images-amazon.com/images/I/512vp8mRbBL.jpg' noproxy></br><img src='http://ecx.images-amazon.com/images/I/61IyDk5XtkL.jpg' noproxy></br>