Heavy-Duty Commercial Performance Door Closer. Engineered for the demands of busy entryways, this Commercial Duty Door Closer is perfect for medium- to high-traffic doors in aluminum storefronts, restaurants, offices, and other public spaces. Built to handle doors weighing between 85 to 260 lbs with smooth, reliable operation. Easy Installation & Custom Settings: This hydraulic door closer utilizes dual independent valves for precise control over closing and latching speeds. It includes an adjustable back-check to prevent uncontrolled opening. Versatile Mounting Options: ...