Heavy Duty Office Chair Cylinder Replacement 11 to 16.5 Inch Travel Length With 5.5 Inch Stroke 1000 Lbs Class 4 Hydraulic Lift Universal Pneumatic Piston Fit For Sinking Desk And Gaming Chairs

Heavy-Duty Chair Cylinder Replacement for 11-16.5 Inches
✔️ Single universal 1-1/8 in piston, 1000 lb cap, quiet, color: Black

This is a heavy-duty universal replacement chair cylinder designed to restore stability and height adjustability to sinking office and gaming chairs. It’s built to fit most desks and chairs with a 1-1/8" piston shaft, making it a reliable upgrade for homes, gyms, and offices where durable seating matters.

✅ 5.5 in travel length (140 mm); height 11-16.5 in (279-420 mm)
✅ 1-1/8 in piston shaft (28 mm) for 99% of chairs
✅ 1000 lb capacity; Class 4 hydraulic, SGS/BIFMA certified
✅ Quiet operation under 25 dB; installation gloves included
✅ Universal fit for most office, gaming, ergonomic chairs up to 440 lb
✅ Lifetime warranty; 24/7 US-based support

💡 What is a heavy-duty office chair cylinder replacement used for and why choose a single unit?

It's handy for upgrading sinking chairs and delivering reliable height adjustability and longevity.

- Handy for desks, gaming chairs, and ergonomic seating - Fits 1-1/8 inch piston shaft chairs (28 mm) - Supports up to 1000 lb capacity for heavy use