PROFECTUS Office Chair Gas Cylinder Replacement – Heavy Duty Class 4 Piston, 5.5" Adjustable Height, Universal Fit for Most Chairs, Smooth & Silent Lift, 1000 lbs Support

How to install1.Tip the chair onto its side.2.Use the rubber mallet to tap and remove the base of the chair away from the seat.3.Use the pipe wrench to clamp tightly onto the top of the cylinder. Twist and then pull up in order to remove the cylinder.4.Remove the orange cap of the new cylinder. Insert the bottom of the cylinder into the center of the chair base.5.Carefully lift both the chair base and the chair cylinder into the chair mechanism. The parts will then fasten on their own.FeaturesHeavy duty gas lift cylinder.Made of the highest quality materials available.Durable and resistant to the greatest weights.The best choice for adults, children and anyone in the family.SpecificationsMaterial: 45# SteelColor: BlackOuter cylinder diameter: 2"Inner cylinder diameter: 1.1"Minimum length: 8.5"Fully extended length: 12.5"Adjustable range: 5"Package Included1x Black Chair Gas Lift Cylinder

• 【Universal Size – Easy Replacement】 Fits most office chairs with 2" (50mm) outer and 1.1" (28mm) inner diameter. Standard universal size—no measuring mistakes.
• 【Heavy-Duty & Durable Build】 Crafted from premium 45# solid steel, this Class 4 piston supports up to 1000 lbs. Built to last through daily heavy use.
• 【Smooth & Silent 360° Rotation】 Enjoy quiet and stable movement in every direction. No squeaks or jerks, even when shifting or reclining.
• 【5" Height Adjustment Range】 Fully adjustable from 8.5" to 12.5" total height. Ideal for taller users, standing desks, or high-seating tasks.
• 【PROFECTUS Quality Promise】 Rigorously tested and SGS-certified for reliability. Questions? Our US-based support is ready to help, no script, no delay.