Herman Miller Aeron Chair Premium Heavy Duty Replacement Gas Cylinder

Very easy to replace. Fast shipping too! I highly recommend this seller.

Herman Miller Aeron Chair Premium Heavy Duty Replacement

It works! Having said that when you sit it doesnt hold me (210lb) and goes down a bit in addition if the ring would be wider my feet would be able to be closer to 90 degree then 45 degree.

Cylinder Replacement

Followed Crandall youtube instructions. Removal took some effort, but results turned out great. Adjustment of lever was required. Chair back in service. Thank you Sheri for all your help.