Gas Lift Cylinder Replacement For Office Chairs, 4 Inch Travel, Heavy Duty Class 4 Polished Steel, 450 Lb Capacity, Universal Size Fits Most Executive Chairs, Hydraulic Pneumatic Shock Piston, BIFMA ANSI Certified

Heavy-Duty 4-Inch Gas Lift Cylinder Replacement (Single)
✔️ 450 lb capacity; 4-inch travel; universal fit; polished steel

This heavy-duty gas lift cylinder is a direct replacement for most office, executive, and gaming chairs. It restores height adjustability with a smooth lift, supporting up to 450 lb. The universal 4-inch travel suits most desks, and the height range is roughly 10.3 to 14 inches (262 to 355 mm). The outer housing is polished steel for durability, and the unit is BIFMA/ANSI Class 4 certified for safety and long life. Base hole diameter is 2 inches (50 mm) and seat hole diameter is 1.1 inches (28 mm) for broad compatibility.

✅ 450 lb load rating (204 kg)
✅ 4-inch travel length (101.6 mm)
✅ Polished steel outer housing for durability
✅ Base hole diameter 2 in (50 mm); seat hole diameter 1.1 in (28 mm)
✅ Universal fit for most chairs, including office, executive, and gaming chairs
✅ BIFMA/ANSI Class 4 certified for safety and reliability

💡 What is a gas lift cylinder used for in office chairs and why is a 450 lb rating handy? This handy feature restores height adjustability and seating support in daily use. - Supports up to 450 lb, reducing sinking and height loss during use - Delivers smooth, controlled 4-inch travel for ergonomic adjustments - BIFMA/ANSI Class 4 certification signals reliable, long-lasting performance