The Office Oasis Office Chair Gas Lift Replacement Kit — Class 4 Cylinder with Removal Tool, Universal Fit

Replace a sinking office or gaming chair in minutes with a heavy-duty Class 4 gas lift cylinder and the included purpose-built removal tool.

If your desk or gaming chair no longer holds height, the Office Oasis cylinder replacement kit restores performance without buying a new chair. This complete kit includes a robust Class 4 pneumatic gas lift piston, our proprietary removal tool created for painless disassembly, gloves, and clear step-by-step instructions from an American family business with a long track record fixing chairs. The cylinder uses industry-standard dimensions to fit most modern office chairs — saving you money and landfill space by reviving the chair you already own.

How does this kit actually get a stuck or sinking chair working again?

The kit replaces the worn or leaking gas lift inside your chair with a new Class 4 pneumatic cylinder and gives you the tool built specifically to remove the old part. The removal tool makes detaching the old cylinder simple and safe, removing the need for improvised methods that can damage chair components.

• Includes removal tool engineered for chair bases and columns
• Step-by-step instructions guide the swap process
• Gloves included to protect hands during installation
• Replacement cylinder fits standard mounting sizes

Will this part fit my chair — including popular brands like Herman Miller?

The cylinder uses the industry-standard shaft and column diameters that match most office and gaming chairs, including many well-known models. If your chair has non-standard dimensions, Office Oasis provides customer support to confirm fit or arrange a solution.

• Piston shaft diameter: 1-1/8 inch (28 mm)
• Outer column diameter: 2 inches (50 mm)
• Compatible with the majority of contemporary office and gaming chairs
• Support available if dimensions don’t match

What makes this cylinder different from cheaper replacements?

This product is a Class 4 cylinder, the highest standard for durability and load capacity in desk chair gas lifts. Cheaper options often fail early; this cylinder is built for heavier use and long-term stability, reducing the chance of future sinking or leakage.

• Rated Class 4 for increased strength and longevity
• Designed to support heavy loads and frequent adjustment cycles
• Manufactured to resist leakage and premature wear
• Backed by Office Oasis lifetime warranty and support

How easy is installation — do I need special tools or experience?

No advanced tools or experience required: the kit was designed to let a typical homeowner replace a chair cylinder quickly and safely. The proprietary removal tool eliminates the need to improvise, and clear instructions walk you through each step from removing the base to seating the new cylinder.

• Purpose-built removal tool included — no hammering or guesswork
• Clear, illustrated instructions for each step
• Gloves provided for safe handling and grip
• Customer support available if you run into difficulty

Who is this for? The Office Oasis cylinder replacement kit is ideal for anyone who wants to extend the life of an office or gaming chair without buying a new unit: homeowners, remote workers, small businesses, IT departments, and facility managers. It’s particularly useful for people dealing with chairs that regularly sink or leak, or anyone who prefers repairing durable furniture rather than replacing it. If you value a reliable fit, easy installation, and a long-lasting Class 4 lift backed by ongoing support, this kit is designed for you.