Heavy Duty — High-traffic Interior and Exterior Doors. This performance-tested and ANSI/BHMA certified, Grade 1 Door Closer is designed for heavy duty commercial applications for indoor and perimeter use such as Schools, Government Buildings, Interiors, Medical Facilities, Hospitals, Libraries, Hotels, Airports, Multi-Family Buildings, Condos and other public buildings. Grade 1 is the highest standard achievable for Door Closers. It will easily handle 4,000 openings per day, providing smooth, reliable use for many years to come.
