Door closer (5000 series)

Features:
1) 5000 series door closers are provided with closing, latching, buffering and
  time delaying functions; with 2, 3 or 4 adjustable valves
2) With adjustable function of shutdown strength
3) Installation modes:
  a) Vertical on the door
  b) On the upper doorframe
  c) Parallel
  d) Slide-rail
4) The matching cover casing can be chosen by the buyer