Rythalix RX-GAS-LIFT-S100-15-BLACK-CA-v1 Office Chair Cylinder, Top-Activated

For office and gaming chair owners replacing a worn or nonworking lift, this Rythalix cylinder provides adjustable seat height and 360-degree rotation in one replacement component.

Its 12.2–18.5-inch height range gives you room to set the chair for your desk and seating position. The cylinder is designed for top-activated chairs, so checking how your chair’s lift operates is an important part of choosing the right replacement.

Want to restore your chair’s height adjustment without replacing the whole chair? This lift is a practical option when the chair itself remains suitable for everyday use.

Key features

The Class 4 hydraulic lift is listed with a 1,000 lb capacity and is made from alloy steel. Its pneumatic design supports adjustable seat height, while 360-degree rotation lets the chair swivel as you work or play. Together, these features make it a functional replacement for an office or gaming chair cylinder, rather than a change to the chair’s overall setup.

Compatibility depends on the chair’s activation style. This cylinder is for top-activated models with a standard 1-1/8-inch piston shaft, it is not for side-activated chairs. Confirm that your chair uses a top-activated lift and the matching shaft size before installation.

To install it, remove the old cylinder, place the new one in the chair base, and attach the seat mechanism to the top of the cylinder. Remove the top cover before use. This replacement approach suits a chair that needs a new lift while its other parts remain usable.

Quick sizing guide

The listed adjustable height runs from 12.2 to 18.5 inches, with a 6.3-inch travel range. Compare those measurements with the chair’s current seat-height setup and the height you need at your desk. The product’s listed dimensions are 2.4 inches deep by 2.4 inches wide by 18.5 inches high, useful reference points when comparing replacement cylinders.

The right choice depends on both the height range and the connection style—not just whether a cylinder looks similar. Match the top-activated design and shaft size, then consider whether the available adjustment range suits your chair and workspace.

Who it’s for

This cylinder is intended for adults replacing the lift in an indoor office or gaming chair. It works for a home desk or office setup where seat-height adjustment and swivel movement are part of everyday use. Choosing a cylinder replacement can keep a usable chair in service, while replacing the entire chair is a different approach for someone looking to change the chair itself.

Buyers commonly describe the replacement as restoring chair function and appreciate its fit and adjustability. Feedback on length is mixed, which makes comparing the listed height range with your chair especially useful.

Final verdict

The Rythalix lift is a focused replacement for a top-activated office or gaming chair that needs adjustable height and swivel movement. Its 12.2–18.5-inch range, alloy-steel construction, and stated Class 4 capacity give you concrete details to compare when selecting a cylinder. Match the activation style and shaft size, and it can help return a suitable chair to everyday desk use.