Upgrade or restore your chair with this heavy-duty, commercial-grade classic aeron pin activated cylinder 1994-2012 replacement.

Designed to match original Herman Miller manufacturer specifications, this Class 4 pneumatic cylinder provides smooth height adjustment and long-lasting durability for daily office or work-from-home use.

Key Features: • Universal Compatibility: Fits Classic Herman Miller Aeron Chairs (1994–2012) in Sizes A, B, and C. • Commercial-Grade Durability: Heavy-duty Class 4 pneumatic gas lift supporting up to 440 lbs (200 kg). • Industry Certified: Built to meet high BIFMA quality and safety standards. • Installation & Technical Support: Direct replacement part. Removal difficulty varies based on chair age and usage. Request our unlisted YouTube video guide or contact us anytime for direct technical assistance!

⚠️ Critical Compatibility Check Before Buying: Please check your chair's mechanism box under the seat before purchasing to confirm cylinder type: • COMPATIBLE: If your chair uses a top-pin activated metal actuator mechanism (1994–2012 models). • NOT COMPATIBLE: If your cylinder uses a cable hook side actuator.