Office Chair Cylinder Replacement - Heavy Duty Class 4 Hydraulic Pneumatic Gas Lift Cylinder(12" to 18" Adjustable, 1000 lbs Capacity) - Universal Fit for Most Executive Office Chairs

Upgrade your office chair with this heavy-duty Class 4 hydraulic gas lift cylinderengineered for strength, smoothness, and universal compatibility. Offering an extra-wide 5.9-inch height adjustment range (from 11.8" to 17.7"), this gas lift is perfect for customizing your seating position to suit different desk heights or multiple users. The universal 2" outer diameter, 1.1" inner piston, and 1.77" base shaft are designed to fit most standard office chairs with a 2-inch mounting hole.Check dimensions before purchase. Certified by SGS and BIFMA, this high-performance lift supports up to 1000 lbs with no wobble, leakage, or failure. Constructed with thickened steel and built-in anti-explosion decompression technology, it ensures maximum safety and long-term durability. Experience silent, 360° swivel movement and silky-smooth height adjustments thanks to precision sealing and gas-powered shock absorption. No creaks or jerksjust seamless operation in your workspace. Installation is fast and hassle-free: just remove the old lift and drop in the new oneno screws or tools required beyond a rubber mallet. Perfect for anyone looking to upgrade or replace a worn-out office chair cylinder with a reliable, high-capacity solution.