Office Chair Cylinder Replacement (Polished Steel, 3.9 Height Range) Heavy Duty 1000lbs Class 4 Hydraulic Lift, Universal Pneumatic Piston Fit for Sinking Desk/Gaming Chairs

HEIGHT-MATCHED SIZING GUIDE: No Guesswork! Skip wrong-size hassle! Exact fits by U. S.
height: 3.9"
Travel Length (suitable for heights: 53511). Ensures 90° knee bends for healthy posture. Multiple sizes availableshare your height/desk size for personalized picks. CLASS 4
INDUSTRY STANDARD SIZE: 1000LBS Capacity +
BIFMA Certification: Standard desk chair cylinders often fail under heavy useleaving you frustrated with wobbly or unsafe seating. This office chair cylinder is built for industrial-grade reliability, with BIFMA-certified hydraulic components. It supports 3X more weight (1000lbs) than ordinary cylinders, so you can trust it for heavy-duty needs. SILENT 360° ROTATION + 3.9" HEIGHT RANGE (Perfect for
Standing Office Chair): Annoyed by loud chair adjustments disrupting libraries or open offices? This office chair hydraulic cylinder glides at <25dBquieter than a whisperso you can adjust without disturbing others. Designed to fit standing desks, with a 3.9" height range ( 10.1" to 14") for personalized comfort. To make setup easier, installation gloves are includedno extra supplies needed, just a smooth process.
UNIVERSAL FIT: 99% of
Gaming/Ergonomic Chairs: Worried about buying a cylinder replacement that doesnt fit your chair? This cylinder is engineered for 1-1/8" (28mm) piston shafts, working with 99% of office, gaming, and ergonomic chairs. Fix sinking chairs in just 5 minutessaving 80% compared to buying a new chair. Ideal for users up to 440lbs; if youre unsure about compatibility, verification is available.
EXTRA HEAVY-DUTY: Pneumatic piston cylinder safety is non-negotiablecheap options leak or fail prematurely. This 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