Cal-Royal CR441 Series Grade 1 ADA Heavy Duty Commercial Door Closer

  Features Heavy-Duty Cast-Iron Body (with rust-inhibiting treatment) Hydraulic door closer with standard adjustable back-check ANSI A156.4 Grade 1, UL Listed conforms to standards UL10c and UBC7-2-1997 Universal Application. Non-Handed for Standard, Top Jamb or Parallel Arm Installation   Non-Sized, 1 thru 6 Factory Preset Size 3 Door Weights:  30 to 260 lbs For interior and exterior use Self-tapping screws and closer gauge for easy adjustment is standard feature Barrier Free (BF) Meets ADA regulations. Size 1 thru 6 engineered with reduced spring power to provide easier opening for handicapped or elderly References Technical Specifications Installation Guide