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Main image of 14-22 Inch Extra Long Office Chair Cylinder Replacement with Gloves 8" Stroke Gas Lift, Heavy Duty 1000 lbs Class 4 Hydraulic Piston, Universal Fit

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14-22 Inch Extra Long Office Chair Cylinder Replacement with Gloves 8" Stroke Gas Lift, Heavy Duty 1000 lbs Class 4 Hydraulic Piston, Universal Fit

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Stop Your Chair from Sinking High-precision gas pressure seal and premium-grade carbon steel piston rod eliminate the most common chair failure: seat slowly sinking down under weight. BIFMA Class 4 certified tested to maintain set height for years, even under frequent daily use. No more readjusting every few minutes.
8"Stroke For Tall Chairs & Standing Desks Compressed length: 13.97 in (355 mm); fully extended: 21.85 in (555 mm). Designed for tall users over 6'2", drafting chairs, bar stools, and standing desk chairs. Total seat height range: approximately 2027 inches from floor. Measure your existing cylinder length (outer tube, bottom to top) before ordering to confirm fit.

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Fits Tall Chairs 2 Standard Sizes Outer cylinder diameter: 2 in (50 mm) fits into the chair base socket. Piston shaft diameter: 1-1/8 in (28 mm) connects to the seat plate. Fits most drafting chairs, bar stools, counter-height stools, and tall office chairs. Check both your base socket size and seat plate hole diameter before purchase.
Class 4 Heavy Duty Carbon Steel Manufactured to BIFMA/ANSI high industry standard. Premium steel construction supports up to 1000 lbs. Engineered to prevent sinking in heavy-use environments and eliminates common height adjustment failures.
5-Minute Tool-Free Installation Lean the chair on its side. Strike the base ring upward with a rubber mallet to release the old cylinder no screwdriver needed. Slide the new cylinder straight into the base socket until it clicks firmly. Flip the chair upright, reattach the seat plate, and sit down to lock the piston in place. Rubber gloves included for a clean, safe grip during removal.