The 1094 Series SureClose Polished Chrome Concealed Mounting Hydraulic Door Closer has a Powerful Gas-Loaded Hydraulic Cylinder that Guarantees Controlled Closure. Solid Steel Enclosed Housing and Bend-Resistant Hook Assure Long Wear in Heavy use, and the Extra-Wide Hook Ensures Roller Pick-up and Overcomes Alignment Problems. The 1094 is a Perfect Complement for Kason Walk-in Hinges and Latches where Self-Closing Doors with Controlled Closure are Needed