{"product_id":"b0f58lvzjd","title":"5.5\" Short Office Chair Cylinder Replacement | Heavy Duty 1000lbs Class 4 Hydraulic Lift with Silent 360° Rotation, Universal Fit for Sinking Desk\/Gaming Chairs","description":"\u003cdiv\u003e\n\u003ch1\u003eAbout This\u003c\/h1\u003e\n\u003cul\u003e\n\u003cli\u003eHEIGHT-MATCHED SIZING GUIDE: No Guesswork! Skip wrong-size hassle! Exact fits by U.S. height: 5.5\" Travel Length (suitable for heights: 5’54”–6’0). Ensures 90° knee bends for healthy posture. Multiple sizes available—share your height\/desk size for personalized picks.\u003c\/li\u003e\n\u003cli\u003eClass 4 Industry Standard Size: 1000LBS Capacity + BIFMA Certification: We know standard desk chair cylinders often fail under heavy use—leaving you frustrated with wobbly or unsafe seating. Our Short office chair cylinder replacement is built for industrial-grade reliability, with BIFMA -certified hydraulic components. 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.\u003c\/li\u003e\n\u003cli\u003eSILENT 360° ROTATION + 5.5\" HEIGHT RANGE(The sinking length is 2.4” (60mm)): Annoyed by loud chair adjustments disrupting libraries or open offices? Our office chair hydraulic cylinder glides at \u0026lt;25dB—quieter than a whisper—so you can adjust without disturbing others. We’ve designed it to fit standing desks, with a 5.5\" height range (10.9\" to 16.5\") for personalized comfort. To make setup easier, we include installation gloves—no extra supplies needed, just a smooth process.\u003c\/li\u003e\n\u003cli\u003eUNIVERSAL FIT: 99% of Gaming\/Ergonomic Chairs (28mm Piston Shaft): 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.\u003c\/li\u003e\n\u003cli\u003eEXTRA 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.\u003c\/li\u003e\n\u003cli\u003eLIFETIME 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.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch1\u003eOverview\u003c\/h1\u003e\n\u003cul\u003e\n\u003cli\u003eBrand : Rythalix\u003c\/li\u003e\n\u003cli\u003eColor : Black\u003c\/li\u003e\n\u003cli\u003eMaterial : Metal\u003c\/li\u003e\n\u003cli\u003eProduct Dimensions : 2.4\"D x 2.4\"W x 2.4\"H\u003c\/li\u003e\n\u003cli\u003eSize : 5.5 inches\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"GAMEGEAR","offers":[{"title":"Default Title","offer_id":46900643659972,"sku":"SPH-B0F58LVZJD","price":45.88,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0759\/0199\/3156\/files\/31FU0LPsXTL._AC_SL1500.jpg?v=1790824527","url":"https:\/\/gamegearusstore.com\/products\/b0f58lvzjd","provider":"GAMEGEAR","version":"1.0","type":"link"}