Lift Chair Lift

Lift Chair Lift
Can a computer chair which is using gas lift which is no longer working can still be repaired?

My computer chair wont lift anymore and wont stay still to my desired height. I dont want to junk it because the cushion is still good and comfy but it just goes down and down and down until I realized I am already below the height of the table. Can somebody suggest how to fix it or any remedy at all?

Google : chair gas cylinder cartridge
Here is one that I found, you may find a cheaper source if you look.
With some effort, you will find the part. It can be installed yourself with basic tools.

single ski lift chair failure