11 Inches-17 Inches Office Chair Gas Lift Cylinder Replacement, Tall Chair Cylinder 5.5″ Stroke, Hydraulic Pneumatic Shock Piston, Heavy Duty 1000lbs, Fit for Most Office Chairs, BIFMA/Class 4 (Black)

Price: $32.99
(as of Jul 19, 2026 04:02:41 UTC – Details)

From the brand

Mastery Mart

We enhance office life with solutions for comfort and efficiency, driven by continuous innovation and excellence.

The creation was driven by the need to address common issues in the market such as lack of comfort, non-ergonomic designs, and non-durable materials. We are committed to introducing innovative designs and high-quality materials to ensure optimal seating and user experience.

Enjoy shopping!

Are our products good quality?

Absolutely! We never compromise on quality. Stringent quality control and the finest materials ensure our products exceed expectations, last long, and provide unbeatable value.

How did we get our start?

Our story began in a modest garage, fueled by a dream to create top-notch products that enhance lives. Through hard work and unwavering passion, we’ve grown but stay true to our roots.

What makes our products unique?

We obsess over every detail to craft something truly exceptional. Our innovative designs and premium materials culminate in products that stand apart.

🏆【Adjustable Height 5.5 inches】The compressed length is 11.69 inches (297mm), the fully expanded length is 17.2 inches (437mm), sinking length is 1/2” (15mm), Stroke Length is 5.5 inches, which allows your chairs to rise higher. (Note: Please measure the length of the outer cylinder before purchase).
🏆【Universal Fit Size for Most Chairs】The outer column cylinder diameter connected to the base is 2 inches (50mm), and the piston shaft diameter connected to the chair is 1-1/8″ (28mm). This pneumatic piston cylinder will fit almost every office chair on the market including herman miller aeron. Please confirm these measurements before making a purchase. Not compatiable with 1KEA and some other brands.
🏆【Upgraded Class 4 Gas Cylinder】Mastery Mart’s office chair cylinder replacement is made of premium steel. This heavy-duty gas lift cylinder is manufactured to meet the highest industry standard (BIFMA/ANSI), the lift has a maximum capacity of up to 1000 LBs.
🏆【Eliminate Sinking Concerns】Prevent sinking issues by removing the old cylinder using a hammer or wrench. Simply assemble our new cylinder into the base and attach the seat. Our office chair lift provides seamless 360-degree rotation.
🏆【100% Satisfaction Guaranteed】For any issues with using our chair shock replacement, please don’t hesitate to contact us. We are here to provide guidance, offer replacements, or process refunds, depending on your specific case. Your satisfaction is our priority.

Product summary

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