Replacement Pneumatic Gas Lift Cylinder for Classic Herman Miller Aeron Chairs. Brand New, Never Used! CLASS 4 with 400N : Designed for office chair seat height adjustment. 6.0 Stroke: Offers seat travel from the lowest to the highest seating position. Exceeds ANSI/BIFMA5.1-2011 Standards: Ensuring durability and reliability. Load Capacity: Supports up to 350 pounds, making it ideal for larger users. Cylinder Diameter: 28mm (1.1). Column Diameter: 50mm approx. Compatible with Size A, B and C Aeron Chairs. Why Choose Our Replacement Gas Lift Cylinder? Transform your classic Herman Miller Aeron Chair back to its original glory with this brand new pneumatic gas lift cylinder. Specifically designed to meet the needs of the sophisticated user, this replacement component offers unmatched support and seat adjustment flexibility. With a load capacity of 350 pounds and compliance with stringent ANSI standards, you can rest assured your chair will stand the test of time. Perfectly crafted for Sizes A, B, and C Aeron chairs produced between 1996 and 2012, this cylinder not only revives the functionality of your chair but also enhances your seating experience, allowing for smooth transitions and personalized height adjustments. Don’t let an outdated or broken cylinder spoil your comfort. Elevate your workspace with the best replacement option for your prized Aeron Chair and ensure peak performance day in and day out! Alternative Carriers – We may use alternative carriers e. To ensure your package arrives safely and on time. We do not accept return on most products. All sales are final. Your feedback is extremely important to us. We strive to provide the best products and customer service possible. We are committed to resolving any problems and ensuring your satisfaction.