8.4 Inches-10.9 Inches Office Chair Cylinder Replacement - 2.4'' Stroke, Heavy Duty 1000lbs Class 4 Hydraulic Lift, Universal Pneumatic Piston Fit for Sinking Desk/Gaming Chairs

★★★★★ 5.0 138 reviews

US$8.80
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US$8.80
Price when purchased online
Free shipping Free 30-day returns

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Product details

Management number 217503636 Release Date 2026/04/19 List Price US$8.80 Model Number 217503636
Category
  • HEIGHT-MATCHED SIZING GUIDE: No Guesswork! Skip wrong-size hassle! Exact fits by U.S. height: 2.4" Travel Length (suitable for heights: 4’9”–5’7”). Ensures 90° knee bends for healthy posture. Multiple sizes available—share your height/desk size for personalized picks.
  • CLASS 4 INDUSTRY STANDARD SIZE: 1000LBS Capacity: We know standard desk chair cylinders often fail under heavy use—leaving you frustrated with wobbly or unsafe seating. Our office chair cylinder is built for industrial-grade reliability. We ensure it supports 3X more weight (1000lbs) than ordinary cylinders, so you can trust it for heavy-duty needs. We stand by its quality, so you won’t face frequent replacements.
  • SILENT 360° ROTATION + 2.4" HEIGHT RANGE(Perfect for Standing Office Chair): Annoyed by loud chair adjustments disrupting libraries or open offices? Our office chair hydraulic cylinder glides at <25dB—quieter than a whisper—so you can adjust without disturbing others. We’ve designed it to fit standing desks, with a 2.4" height range (8.4" to 10.9") for personalized comfort. To make setup easier, we include installation gloves—no extra supplies needed, just a smooth process.
  • UNIVERSAL FIT: 99% of Gaming/Ergonomic Chairs: Worried about buying a cylinder replacement that doesn’t fit your chair? We’ve engineered this cylinder for 1-1/8" (28mm) piston shafts, working with 99% of office, gaming, and ergonomic chairs. We help you fix sinking chairs in just 5 minutes—saving 80% compared to buying a new chair. It’s ideal for users up to 440lbs; if you’re unsure about compatibility, no problem, and we’ll verify for you.
  • EXTRA HEAVY-DUTY: We know pneumatic piston cylindersafety is non-negotiable—cheap options leak or fail prematurely. Our hydraulic cylinder has Class 4 components (highest durability rating for chair parts) and an explosion-proof design with no sudden malfunctions; lab-tested to last 10+ years in high-wear spaces like gyms and workshops, it outperforms low-grade alternatives that break down in months, and we ensure it stands up to rigorous use.
  • LIFETIME WARRANTY + 24/7 US-BASED SUPPORT: We hate complicated after-sales processes. If your office chair piston ever fails due to manufacturing defects (non-human damage), we’ll send a free replacement—no returns required. Our US-based experts are available 24/7 to answer questions, from installation to warranty claims. We’re here to make sure you’re satisfied, so you can shop with confidence.
Size 2.4‘’ Height Range
Color Matte Black
Shape Cylindrical
Theme Industrial, Office
Pattern Solid
Tilting No
Arm Style Armless
Leg Style wheels
Room Type Office
Back Style Solid Back
Brand Name Rythalix
Item Depth 2.4 inches
Model Name Office Chair Gas Cylinder
Seat Depth 2.4 inches
Style Name Modern
Unit Count 1.0 Count
Is Foldable No
Item Weight 700 Grams
Seat Height 4.5 Inches
Finish Types Metallic
Manufacturer Rythalix
Model Number RX-GAS-LIFT-S100-15-BLACK-CA-v1
Fill Material Steel
Material Type Alloy Steel
Seat Material Alloy Steel
Is Customizable No
Item Dimensions 2.17 x 2.17 x 5.51 inches
Furniture Finish PolishedLeg Style Leg Style
Required Assembly Yes
Additional Features 360 Degree Rotation, Adjustable Height
Frame Material Type Alloy Steel
Included Components Gas Lift Cylinder
Indoor Outdoor Usage Indoor
Age Range Description Adult
Surface Recommendation Office Chair Base
Furniture Base Movement Swivel
Reclining Position Count 1
Item Dimensions D x W x H 2.4"D x 2.4"W x 10.9"H
Product Care Instructions Handle with care to avoid high temperatures and punctures. Please remove the top cover before use
Number of Height Positions 5
Recommended Uses For Product Office
Maximum Weight Recommendation 453.6 Kilograms

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138 ratings | 57 reviews
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