Hydraulic Gas Lift Replacement for Herman Miller Chair Size A and B

Precision Fit – Specifically designed to fit Herman Miller Aeron Classic Size A & B chairs.

Smooth Height Adjustment – Standard 5" travel for personalized seating position.

Heavy-Duty Build – Made from hardened steel with anti-corrosion finish for lasting durability.

Quiet & Consistent – Silent operation with consistent pneumatic lift performance.

Easy Installation – No special tools required; install in minutes.

1x Hydraulic Gas Lift Cylinder
(Compatible with Herman Miller Aeron Classic Chair Size A & B)

1. Remove chair base and old cylinder (use mallet or pipe wrench if needed).
2. Insert new gas lift into the base and reattach the seat.
3. Apply weight to secure the cylinder in place.

Pro Tip: Watch Aeron gas lift replacement videos on YouTube for visual help.

If your Aeron chair no longer stays at the correct height or sinks during use, the gas lift is likely worn out. This replacement restores full functionality without needing to replace your entire chair — saving you hundreds of pounds.

Herman Miller Aeron Classic – Size A

Herman Miller Aeron Classic – Size B

Not compatible with Size C or Remastered Aeron models.

Fast Dispatch | High Quality | Reliable Performance

Get your chair working like new again. Order now and restore the comfort, support, and adjustability your Aeron was made for.