Hydraulic Cylinder Replacement, Gas Lift Cylinder 9.2In/Replacement Piston Heavy Duty, Universal Size Fits Most Chairs

1.SMOOTH & NOISELESS: Full 360 degree rotation, smooth and noiseless movements to all directions.2.5.7" PISTON STROKE / TRAVEL ADJUSTMENT RANGE (up & down)3.STANDARD CYLINDER DIAMETER: Outer cylinder: 2 inches, Inner cylinder: 1.1 inches. please confirm the measurement before ordering.4.EASY INSTALLATION : Can be installed easily with no additional screws required.5. 100% WARRANTY: Your satisfaction is always our top priority. if for some reason the cylinder fails, contact our professional after-service team via email, our direct after-sale team will reach out to you and timely solve your problems.

• 【HEAVY DUTY GAS LIFT CYLINDER】that holdsup to 440 lbs - tall center support column of the chair. on most office executive and computer chairs.
• 【ALTERNATIVE OFFICE CHAIR GAS CYLINDER】 chair hydraulic cylinder replacement makes full 360 degree rotation simple and smooth, No noise to colleagues even when turning or lying on a chair to rest.
• 【HOW TO INSTALL】1.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. 4.Twist and then pull up in order to remove the cylinder.5.Remove the orange cap of the new cylinder. Insert the bottom of the cylinder into the center of the chair base.6.Carefully lift both the chair base and the chair cylinder into the chair mechanism. The parts will then fasten on their own.
• 【HIGH QUALITY & COMFORT】 - The integrated depth springing ensures a springy, relaxed sitting feeling and protects the spine, as the impact effect is avoided when sitting down.
• 【GAS LIFT CYLINDER】 - The office chair gas cylinder has passed SGS official test and BIFMA certification, and It is made of high-quality thickened outer steel, on most office, executive and computer chairs.