SamhongsaHerman Miller Aeron Chair Pneumatic Cylinder, #1B08VM

The bottom of the cylinder of my 25 year old Aeron is hitting the carpet floor. Will a new cylinder fix that?

Will this work on a Mirra 2 chair?

Does this work on a side activated or front activated Aeron chair or both?

Might someone please tell me after installing the new cylinder, when it is in its LOWEST position, how high is the seat from the floor? Thank you.