Fits Herman Miller Aeron Chair as Replacement Pneumatic Gas Cylinder 4.5" Stroke / Travel NEW.  Extended Height.

  • Heavy Duty Replacement For Fits Herman Miller Aeron Chairs
  • 4” stroke (seat travel from lowest to highest settings)
  • Gas spring diameter 1.1”
  • Support column is 2" in diameter
  • Dimensions when fully compressed: 11”. Fully extended: 15.4”
  • Industry standard 17-4 taper
  • Class 4 with 400n (standard cylinders are class 3 with 300n)
  • Exceeds BIFMA standards
  • Cylinder shipped completely assembled ready for use
  • Non-OEM Replacement

Office-chair-parts supplies high quality non-OEM replacement parts.  
We are not affiliated with and do not represent Herman Miller.

IMPORTANT: 

Herman Miller used different vendors for their gas cylinders. The trigger for the gas cylinder came in different lengths depending on source,  so they designed what's called a setscrew that sits on top of the trigger and pushes down on it to activate it. Since the trigger was in different lengths the setscrew can be adjusted so that it's not engaging the trigger all the time which happening with some chairs. There is a video on YouTube how to adjust the setscrew. You can do a search for: aeron chair setscrew and you will see the video.