Heavy Duty Hydraulic Door Closer, Adjustable Spring Size 3-6 Self-Closing-USA. 9.68"L x 2.75"W x 1.75H. HEAVY-DUTY COMMERCIAL PERFORMANCE: Engineered for the demands of busy entryways, the Dynasty Hardware 1636 Series 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 from 85 to 260 lbs with smooth, reliable operation. EASY INSTALLATION & CUSTOM SETTINGS: This hydraulic door closer uses dual independent valves for precise control over closing and latching speeds, ...