BestGamerPicks is reader-supported. As an Amazon Associate we earn from qualifying purchases. This does not change our recommendations. Learn more.
The best gaming chair replacement gas cylinder fixes a chair that slowly sinks or will not hold its height, without buying a whole new chair.
Cylinders differ by length, travel, class rating and activation style. We compared the best gaming chair replacement gas cylinder options so you can match your chair.

Quick Answer: The Best Gaming Chair Replacement Gas Cylinder
- Best Kit with Tool: The Office Oasis Office Chair Cylinder Replacement with Removal Tool
- Best for Top-Activated Chairs: Rythalix 10–14 Inch Office Chair Cylinder, Top-Activated
- Best Heavy Duty: MASTERY MART 9–13 Inch Office Chair Cylinder, Heavy Duty 1000 lbs
- Best Height Range: Omyoffice 5.5 Inch Office Chair Gas Lift Cylinder Replacement
The Office Oasis Cylinder + Tool is the best gaming chair replacement gas cylinder kit because it includes a removal tool. Rythalix is made for top-activated gaming chairs and Mastery Mart is Class 4 heavy duty.
Best Gaming Chair Replacement Gas Cylinder Comparison Table
| Product | Best For | Type | Key Feature | Buy |
|---|---|---|---|---|
| Office Oasis Cylinder + Tool | Best Kit with Tool | Gas cylinder with removal tool | Purpose-built removal tool included | Check Price |
| Rythalix Top-Activated Cylinder | Best for Top-Activated Chairs | Top-activated gas cylinder | Fits 98% of top-activated gaming chairs | Check Price |
| Mastery Mart Heavy-Duty Cylinder | Best Heavy Duty | Class 4 heavy-duty cylinder | Rated 1000 lb, Class 4 | Check Price |
| Omyoffice 5.5″ Gas Cylinder | Best Height Range | Gas lift cylinder | 5.5″ height adjustment, universal size | Check Price |
The 4 Best Gaming Chair Replacement Gas Cylinders
Each best gaming chair replacement gas cylinder pick lists length and class so you can match your chair.
The Office Oasis Office Chair Cylinder Replacement with Removal Tool
1The Office Oasis kit includes a purpose-built removal tool, the easiest way to fix a sinking gaming chair.
👍 Pros & Cons
Pros
- Includes the removal tool
- Revives a sinking chair cheaply
- Industry standard size
Cons
- Premium price for a cylinder
- Measure before ordering
📄 Detailed Review
- Type: Heavy-duty pneumatic gas lift
- Includes: Purpose-built removal tool
- Fit: Industry standard size, gaming chairs included
The Office Oasis says it invented the first cylinder replacement kit with a dedicated removal tool. Replacing the cylinder saves you from buying a new chair.
The industry standard size fits almost every office chair, including gaming chairs.
Rythalix 10–14 Inch Office Chair Cylinder, Top-Activated
2Rythalix’s top-activated cylinder is made for gaming chairs and includes a height-based sizing guide.
👍 Pros & Cons
Pros
- Made for top-activated gaming chairs
- Height-matched sizing guide
- Silent 360° rotation
Cons
- Not for side-activated chairs
- Shorter 3.9-inch travel
📄 Detailed Review
- Type: Top-activated gas lift
- Range: 10–14 in, 3.9 in travel
- Fit: Standard 1-1/8 in (28 mm) piston
Rythalix says this gas lift fits 98% of top-activated gaming and ergonomic chairs with a standard 28 mm piston. A sizing guide matches cylinder length to your height.
It offers 3.9 inches of travel with silent 360° rotation.
MASTERY MART 9–13 Inch Office Chair Cylinder, Heavy Duty 1000 lbs
3Mastery Mart’s Class 4 cylinder is made of premium steel and advertised for heavy-duty use.
👍 Pros & Cons
Pros
- Class 4 rating
- Heavy-duty steel
- Universal 2-inch column
Cons
- Removal tool sold separately
- Check stroke length
📄 Detailed Review
- Type: Class 4 gas cylinder
- Length: 9.88 in compressed, 13.6 in extended
- Diameter: 2 in outer column
Mastery Mart’s cylinder compresses to 9.88 inches and extends to 13.6 inches. The 2-inch outer column fits most chair bases.
The Class 4 rating is the strongest standard class for chair cylinders.
Omyoffice 5.5 Inch Office Chair Gas Lift Cylinder Replacement
4Omyoffice’s cylinder offers 5.5 inches of height adjustment in a universal size that fits most office and gaming chairs.
👍 Pros & Cons
Pros
- Generous 5.5-inch adjustment
- Universal fit
- Certified for higher loads
Cons
- Removal tool not included
- Check your chair’s height needs
📄 Detailed Review
- Type: Pneumatic gas lift cylinder
- Length: 11.4 in compressed, 5.5 in of adjustment
- Fit: Universal size for most office chairs
Omyoffice lists a fully compressed height of 11.4 inches with 5.5 inches of travel. The universal size fits almost all office chairs, including many gaming chairs.
It is certified to withstand higher weight and pressure.
How We Chose the Best Gaming Chair Replacement Gas Cylinder
To choose the best gaming chair replacement gas cylinder, we compared replacement cylinders on dimensions, class rating, activation type, included tools and owner feedback.
For official guidance on backrests, seat pans and armrests, see the OSHA Computer Workstations eTool on chairs.
Product details in this guide are based on manufacturer specifications and verified owner feedback, not in-house lab testing. Read more on our How We Test page.
Buying Guide: How to Choose the Best Gaming Chair Replacement Gas Cylinder
Keep these factors in mind when shopping for the best gaming chair replacement gas cylinder.
Cylinder length and travel
Cylinders are described by compressed length and stroke (travel). Measure your current cylinder and choose a similar length, or pick by your height if the maker provides a guide.
Class rating
Class 3 and Class 4 cylinders are common; Class 4 is rated for heavier loads. Heavier users and big gaming chairs benefit from Class 4.

Top-activated vs. side-activated
Most gaming chairs use top-activated cylinders, where a lever presses a pin on top. Check your chair before ordering.
Removal tools make it easier
Old cylinders are often stuck in the base. A pipe wrench, rubber mallet or dedicated removal tool makes the swap much easier.
Gas Cylinder Safety Tips
Stay safe during the swap:
- Never take a cylinder apart.
- Wear eye protection when hammering.
- Support the base on a firm surface.
- Recycle the old cylinder properly.
Here are quick answers about the best gaming chair replacement gas cylinder.

Frequently Asked Questions
What is the best gaming chair replacement gas cylinder?
The Office Oasis Cylinder + Tool is the best gaming chair replacement gas cylinder kit, with Rythalix for top-activated gaming chairs.
Why does my gaming chair keep sinking?
The gas cylinder seal has worn out; replacing the cylinder usually fixes it.
How do I know which size to buy?
Measure your current cylinder’s compressed length and travel, or use the maker’s height guide.
Can I replace it myself?
Yes, with a removal tool or pipe wrench and some patience.
Final Verdict
Our final pick for the best gaming chair replacement gas cylinder is the Office Oasis Cylinder + Tool. Choose the Rythalix Top-Activated Cylinder if you want a cylinder made for top-activated gaming chairs, or the Mastery Mart Heavy-Duty Cylinder for heavy-duty Class 4 support.
Related Guides
More gaming chair upgrade guides:
- Best Gaming Chair Casters
- Best Rollerblade Wheels for Gaming Chair
- Best Gaming Chair Armrest Pads
- Best Armrest Cover for Gaming Chair
- Best Wedge Seat Cushion
- Best Lumbar Support Pillow for Lower Back
Product details are based on manufacturer specifications at the time of writing. Prices and availability change often, so check Amazon for the latest price.





Write Your Review
No reviews yet. Be the first to share your experience!