CLASS 4 Pneumatic Gas Cylinder for Herman Miller Aeron Chair – 350 lbs Capacity. CLASS 4 Pneumatic Gas Cylinder for Herman Miller Aeron Chair. Upgrade your seating experience with our brand new CLASS 4 Pneumatic Gas Cylinder, carefully designed for compatibility with Herman Miller Aeron Chairs manufactured between 1996 and 2012. This robust component ensures your office chair functions at its best, with a seat height adjustment that caters to various ergonomic needs. Load Capacity: Accommodates up to 350 lbs, exceeding ANSI/BIFMA5.1-2011 standards. Stroke Length: 6.0 stroke, providing an adjustable seat height from the lowest to the highest seating. Durable Design: Cylinder diameter of 28mm (1.1) and column diameter of 50mm approx. 2 for enhanced stability. Versatile Compatibility: Designed specifically for Size A, B, and C Aeron Chairs. Quality Manufacturing: Produced by Samhongsa, a trusted name since 1971, dedicated to human-oriented design and excellence. Why Choose This Gas Cylinder? This pneumatic gas cylinder represents the pinnacle of ergonomic office design, combining unparalleled strength and reliability. With an easy installation process and compatibility with all Aeron chair sizes, it empowers you to tailor your workspace for optimal comfort. Enjoy peace of mind with a product that has undergone rigorous testing and has qualified under various world standards certifications including BIFMA, LGA, TUV, and SGS. Join countless satisfied customers who trust Samhongsa for enhancing their office comfort. Transform your Aeron Chair today – order your CLASS 4 Pneumatic Gas Cylinder now! 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. Country/Region of Manufacture: Not Set.