Distinguished by their metal slat curtain finish, the 651 Series rolling counter doors are designed to fit openings to 20' wide and 9' high. The 651 Series features a No. 4 finish stainless steel. These doors are ideal for a host of small-opening applications where security is important and non-rated door is appropriate. Common applications include concession areas, cafeterias, pharmacies, parts-storage areas and ticket windows.