Aeron Chair Side Activated Gas Cylinder Replacement Part for Office Chairs. California Prop 65 Warning. Aeron Chair Side Activated Gas Cylinder Replacement Part for Office Chairs Elevate your office comfort with our high-quality gas cylinder replacement for the Herman Miller Classic Aeron Chair. Designed to meet the high standards of the construction industry, this side-activated gas cylinder ensures smooth and reliable seat height adjustment, providing you with a comfortable and productive work experience. CLASS 4 LEVEL GAS LIFT CYLINDER designed to meet the BIFMA Plus Quality standard for Herman Miller Aeron Chair cylinders. ADJUSTABLE HEIGHT OF 6 INCHES with a stroke length of 6.0 inches for smooth seat travel. EXCEEDS ANSI/BIFMA5.1-2011 STANDARDS with a load capacity of up to 350 pounds. REPLACEMENT PARTS FOR HERMAN MILLER AERON CHAIR, suitable for chairs manufactured between 1996 and 2012. Why You’ll Love It: This Pneumatic Gas Cylinder for Herman Miller Classic Aeron Chair is an essential replacement part for your office chair. By upgrading to this high-quality gas cylinder, you’ll enjoy a comfortable and reliable seat height adjustment, perfect for long work hours. Whether you’re working from home or in a busy office, this gas cylinder replacement will help you stay focused and productive.