Fits ONLY the WorkPro 7000 Office Chair.  WILL NOT FIT THE 9000 SERIES. Replacement Pneumatic Gas Cylinder Lift From Office Max or Office Depot.

• Typically installed on chairs rated up to 500 lb.
• 3.93” stroke (seat travel from lowest to highest settings)
• Gas spring diameter 1.18” (larger than standard)
• Support column is 2" in diameter
• Dimensions when fully compressed: 9.8"”. Fully extended: 13.75”
• Industry standard 17-4 taper
• Under base extension: 2"
• Class 4 with 400n 
• Exceeds BIFMA standards
• Cylinder shipped completely assembled ready for use
• This heavy duty pneumatic gas cylinder is typically installed on executive, conference and multi-function managerial chairs