Brand Name: Ace *Pleated: Yes *Product Type: Furnace Air Filter *Height: 14 in. *Width: 20 in. *Length: 1 in. *Minimum Efficiency Reporting Value: 8 MERV *Filters Pollen: Yes *Media Type: Cotton *Filters Dust: Yes *High efficiency  *Traps particles such as plant spores, lint and pet hair *Lasts up to 3 months *Cotton media with expanded metal mesh support *Discovery ACC, CON, NBR, SUP, EXP