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    Meet Your Seller

    9 Inches to 13 Inches Office Chair Cylinder Replacement, 4'' Stroke, Heavy Duty 1000 lbs, Hydraulic Pneumatic Shock Piston, Universal Gas Cylinder Fit for Most Office Chairs, Class 4 (Black)

    • Adjustable Height 4 inchesThe compressed length is 9.88 inches (251mm), the fully expanded length is 13.6 inches (346mm), travel length is 4 inches, which allows your chairs to rise higher. (Note: Please measure the length of the outer cylinder before purchase).
    • Universal Fit Size for Most ChairsThe outer column cylinder diameter connected to the base is 2 inches (50mm), and the piston shaft diameter connected to the chair is 1-1/8" (28mm). This pneumatic piston cylinder will fit almost every office chair on the market including Herman Miller Aeron. Please confirm these measurements before making a purchase. Not compatible with 1KEA and some other brands.
    • Upgraded Class 4 Gas CylinderMastery Mart's office chair cylinder replacement is made of premium steel. This heavy-duty gas lift cylinder is manufactured to meet the highest industry standard (BIFMA/ANSI). The pneumatic lift replacement supports up to 1000 lbs.
    • Eliminate Sinking ConcernsPrevent sinking issues by removing the old cylinder using a hammer or wrench. Simply assemble our new cylinder into the base and attach the seat. Our office chair lift provides seamless 360-degree rotation.
    • 100% Satisfaction GuaranteedFor any issues with using our chair shock replacement, please don't hesitate to contact us. We are here to provide guidance, offer replacements, or process refunds, depending on your specific case. Your satisfaction is our priority.
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    Any questions? Our AI beta will help you find out quickly.

    office chair cylinder replacement
    chair height extenders
    office chair cylinder replacement
    • The office chair cylinder is made from high-strength alloy steel, high-quality thickened outer steel, high safety and explosion-proof. The gas lift cylinder has passed SGS official test and BIFMA certification, highest safety Class 4.

    • Yes, our cylinder measures 1-1/8” (28mm) at the top, where it fits into the chair seat, shaft diameter 2” (50mm) at the bottom, where it fits into the chair base, you can measure your original cylinder before ordering.

    • Top of the cylinder: 1-1/8”, Shaft diameter:2”,

      Shortest and longest height for 4“ stroke ( 9.88 Inches -13.6 Inches );

      4.5“ stroke ( 10.7 Inches -15.2 Inches );

      5.5“ stroke ( 11.7 Inches -17.2 Inches );

      8“ stroke ( 14 Inches -21.8 Inches ).

    • No.

    Check Out All Office Chair Cylinder

    https://m.media-amazon.com/images/S/aplus-media-library-service-media/971b3891-9366-43dc-9f84-d7ff04a54317.__CR0,0,200,225_PT0_SX200_V1___.jpg

    Office Chair Cylinder 4‘’

    https://m.media-amazon.com/images/S/aplus-media-library-service-media/12008b04-58d8-4570-a3c6-7e23fc16ee59.__CR0,0,200,225_PT0_SX200_V1___.jpg

    Office Chair Cylinder 4‘’

    https://m.media-amazon.com/images/S/aplus-media-library-service-media/7171df69-f40d-4df8-9d7e-a2ae42ba2635.__CR0,0,200,225_PT0_SX200_V1___.jpg

    Chair Cylinder 5.5‘’

    https://m.media-amazon.com/images/S/aplus-media-library-service-media/da717362-b5d3-4e90-a98f-797e203fa764.__CR0,0,200,225_PT0_SX200_V1___.jpg

    Office Chair Cylinder 8‘’

    Customer Reviews
    Price
    Brand
    Mastery Mart Mastery Mart Mastery Mart Mastery Mart
    Material
    Alloy Steel Alloy Steel Alloy Steel Alloy Steel
    Stroke Length
    4" (10cm) 4" (10cm) 5.5" (14cm) 8" (20cm)
    Minimum and Maximum Length
    9.88 Inch -13.6 Inch 9.88 Inch -13.6 Inch 11.7 Inch -17.2 Inch 14 Inch -21.8 Inch
    Fit for
    Fix Sinking Office Chair Fix Sinking Office Chair Fix Sinking Office Chair Fix Sinking Office Chair
    Top Piston Diameter
    1-1/8" (28mm) 1-1/8" (28mm) 1-1/8" (28mm) 1-1/8" (28mm)
    Outer Tube Diameter
    2" (50mm) 2" (50mm) 2" (50mm) 2" (50mm)
    office chair cylinder replacement
    chair height extenders
    office chair cylinder replacement
    • The office chair cylinder is made from high-strength alloy steel, high-quality thickened outer steel, high safety and explosion-proof. The gas lift cylinder has passed SGS official test and BIFMA certification, highest safety Class 4.

    • Yes, our cylinder measures 1-1/8” (28mm) at the top, where it fits into the chair seat, shaft diameter 2” (50mm) at the bottom, where it fits into the chair base, you can measure your original cylinder before ordering.

    • Top of the cylinder: 1-1/8”, Shaft diameter:2”,

      Shortest and longest height for 4“ stroke ( 9.88 Inches -13.6 Inches );

      4.5“ stroke ( 10.7 Inches -15.2 Inches );

      5.5“ stroke ( 11.7 Inches -17.2 Inches );

      8“ stroke ( 14 Inches -21.8 Inches ).

    • No.

    Check Out All Office Chair Cylinder

    https://m.media-amazon.com/images/S/aplus-media-library-service-media/971b3891-9366-43dc-9f84-d7ff04a54317.__CR0,0,200,225_PT0_SX200_V1___.jpg

    Office Chair Cylinder 4‘’

    https://m.media-amazon.com/images/S/aplus-media-library-service-media/12008b04-58d8-4570-a3c6-7e23fc16ee59.__CR0,0,200,225_PT0_SX200_V1___.jpg

    Office Chair Cylinder 4‘’

    https://m.media-amazon.com/images/S/aplus-media-library-service-media/7171df69-f40d-4df8-9d7e-a2ae42ba2635.__CR0,0,200,225_PT0_SX200_V1___.jpg

    Chair Cylinder 5.5‘’

    https://m.media-amazon.com/images/S/aplus-media-library-service-media/da717362-b5d3-4e90-a98f-797e203fa764.__CR0,0,200,225_PT0_SX200_V1___.jpg

    Office Chair Cylinder 8‘’

    Customer Reviews
    Price
    Brand
    Mastery Mart Mastery Mart Mastery Mart Mastery Mart
    Material
    Alloy Steel Alloy Steel Alloy Steel Alloy Steel
    Stroke Length
    4" (10cm) 4" (10cm) 5.5" (14cm) 8" (20cm)
    Minimum and Maximum Length
    9.88 Inch -13.6 Inch 9.88 Inch -13.6 Inch 11.7 Inch -17.2 Inch 14 Inch -21.8 Inch
    Fit for
    Fix Sinking Office Chair Fix Sinking Office Chair Fix Sinking Office Chair Fix Sinking Office Chair
    Top Piston Diameter
    1-1/8" (28mm) 1-1/8" (28mm) 1-1/8" (28mm) 1-1/8" (28mm)
    Outer Tube Diameter
    2" (50mm) 2" (50mm) 2" (50mm) 2" (50mm)
    9 Inches to 13 Inches Office Chair Cylinder Replacement, 4'' Stroke, Heavy Duty 1000 lbs, Hydraulic Pneumatic Shock Piston, Universal Gas Cylinder Fit for Most Office Chairs, Class 4 (Black)

    Warranty & Returns

    Warranty, Returns, And Additional Information

    Warranty

    • Please contact the Seller directly for warranty information. Warranty information may also be found on the Manufacturer's website.
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