The 662 Series integral frame counter fire doors provide a handsome finished appearance for a variety of applications, including food service counters. Available for opening sizes up to 9' x 4' (2743mm x 1219mm), these doors carry a UL 1-1/2-hour Class B label and are factory assembled as a complete unit with fully welded frames. Theframe comprises 16-gauge jambs and header, and is complemented by a 14-gauge sill, plus hood and fascia. Added protection features, such as Fire Sentinel™ are available as options.