Brand Name: Ace *Pleated: Yes *Product Type: Air Filter *Height: 20 in. *Width: 25 in. *Length: 1 in. *Minimum Efficiency Reporting Value: 8 MERV *Media Type: Cotton *High efficiency *Traps particles such as pollen, plant spores, lint, pethair and household dust *Lasts up to 3 months *Cotton media with expanded metal mesh support *Discovery ACC, CON, NBR, SUP, EXP