---
product_id: 210281940
title: "chair gas cylinder"
brand: "mastery mart"
price: "€ 55.34"
currency: EUR
in_stock: true
category: "Mastery Mart"
url: https://www.desertcart.be/products/210281940-chair-gas-cylinder
store_origin: BE
region: Belgium
---

# 4-inch adjustable stroke 360° seamless swivel Class 4 heavy-duty steel chair gas cylinder

**Brand:** mastery mart
**Price:** € 55.34
**Availability:** ✅ In Stock

## Summary

> ⚙️ Upgrade your office throne — because your productivity deserves premium support!

## Quick Answers

- **What is this?** chair gas cylinder by mastery mart
- **How much does it cost?** € 55.34 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.be](https://www.desertcart.be/products/210281940-chair-gas-cylinder)

## Best For

- mastery mart enthusiasts

## Why This Product

- Trusted mastery mart brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Built to Endure:** Class 4 gas cylinder supports up to 1000 lbs, engineered with premium alloy steel for unmatched durability.
- • **Risk-Free Upgrade:** Backed by 100% satisfaction guarantee with responsive support, replacements, or refunds.
- • **Elevate Your Comfort:** Adjust chair height effortlessly with a 4-inch stroke for perfect ergonomic positioning.
- • **Smooth & Stable Ride:** Say goodbye to sinking chairs with reliable pneumatic shock and seamless 360° rotation.
- • **Universal Compatibility:** Fits most office chairs including premium brands like Herman Miller Aeron (except 1KEA).

## Overview

The MASTERY MART Office Chair Gas Cylinder offers a robust 4-inch adjustable height range, universal fit for most office chairs, and a heavy-duty Class 4 steel construction supporting up to 1000 lbs. Designed to eliminate sinking issues and enable smooth 360-degree swivel, this premium pneumatic shock replacement ensures long-lasting comfort and stability for your workspace.

## Description

MASTERY MART 9 Inches to 13 Inches Office Chair Gas Cylinder, 4" Stroke, Heavy Duty 1000 lbs, Universal Office Chair Replacement Gas Lift Cylinder Pneumatic Shock, Class 4 (Not for 1KEA, Silver) : desertcart.co.uk: Stationery & Office Supplies

## Features

- 🏆【Adjustable Height 4 inches】The compressed length is 9.88 inches (251mm), the fully expanded length is 13.62 inches (346mm), stroke 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 Chairs】The 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 Cylinder】Mastery 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 lift has a maximum capacity of up to 1000 lbs.
- 🏆【Eliminate Sinking Concerns】Prevent 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 Guaranteed】For 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.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0859WSH26 |
| Age Range Description | Adult |
| Arm Style | Armless |
| Back Style | Mid Back |
| Best Sellers Rank | 27,646 in Stationery & Office Supplies ( See Top 100 in Stationery & Office Supplies ) 1 in Office Chairs & Sofas |
| Brand Name | MASTERY MART |
| Colour | Silver |
| Country Of Origin | China |
| Customer Reviews | 4.6 4.6 out of 5 stars (2,481) |
| Fabric Type | Metal |
| Finish Type | Polished |
| Form Factor | Recliner |
| Frame Material Type | Metal |
| Furniture Base Movement | Swivel |
| Furniture Finish | Polished |
| Included Components | Pole, Caps |
| Indoor Outdoor Usage | Indoor |
| Is Assembly Required? | No |
| Is Customizable? | No |
| Is Foldable | No |
| Item Depth | 25 cm |
| Item Dimensions | 5.6 x 5.7 x 27.3 centimetres |
| Item Dimensions D x W x H | 25D x 5W x 5H centimetres |
| Item Shape | Cylindrical |
| Item Type Name | Electroplating |
| Item Weight | 1 Kilograms |
| Leg Style | Star Base |
| Manufacturer | Mastery Mart Co., Limited |
| Manufacturer Contact Information | Mastery Mart Inc. |
| Manufacturer Part Number | MF-PT001B |
| Material Type | Alloy Steel |
| Maximum Weight Recommendation | 146 Pounds |
| Model Name | Office Chair Gas Cylinder |
| Model Number | GAS-LIFT-GL |
| Number of Items | 1 |
| Number of Packs | 1 |
| Pattern | Solid |
| Product Care Instructions | Wipe Clean |
| Reclining Position Count | 1 |
| Recommended Uses For Product | office chair height adjustment |
| Room Type | Office |
| Seat Depth | 29 centimetres |
| Seat Height | 14 Inches |
| Seat Material Type | Metal |
| Size | 9-13 Inches, 4'' Travel Length |
| Special Features | Heavy-duty construction, adjustable stroke length, premium grade manufacturing |
| Style Name | Solid |
| Surface Recommendation | Carpet, Hard Floor |
| Theme | Contemporary |
| Tilting | No |
| Unit Count | 1.0 count |

## Product Details

- **Brand:** MASTERY MART
- **Colour:** Silver
- **Material:** Alloy Steel
- **Product dimensions:** 25D x 5W x 5H centimetres
- **Size:** 9-13 Inches, 4'' Travel Length

## Images

![chair gas cylinder - Image 1](https://m.media-amazon.com/images/I/41JgA-26-IL.jpg)
![chair gas cylinder - Image 2](https://m.media-amazon.com/images/I/71Wz4SzfXPL.jpg)
![chair gas cylinder - Image 3](https://m.media-amazon.com/images/I/61mxfCn5GyL.jpg)
![chair gas cylinder - Image 4](https://m.media-amazon.com/images/I/718fV6IUExL.jpg)
![chair gas cylinder - Image 5](https://m.media-amazon.com/images/I/81SiaKna8dL.jpg)

## Available Options

This product comes in different **Color, Size** options.

## Questions & Answers

**Q: How durable is this gas lift?**
A: 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.

**Q: Will this chair cyinder fit on the herman miller aeron office chair?**
A: 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.

**Q: What are the measurements of the cylinder, shortest and longest height as well as overall length and width?**
A: 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 ).

**Q: Will this chair cyinder work for 1KEA office chair?**
A: No.

## Frequently Bought Together

- MASTERY MART 9 Inches to 13 Inches Gas Lift Cylinder for Most Office Chair, 4" Stroke, Heavy Duty 1000 lbs, Office Chair Gas Lift Cylinder Replacement, Class 4 (Not for 1KEA, Silver)
- MASTERY MART Office Chair Base Replacement, 28 Inch Heavy Duty 2500Lbs Metal Leg, Reinforced for Swivel Gaming Chair, Universal Caster and Gas Cylinder Size, Polished Steel
- MasteryMart Rollerblade Style Caster Wheels Replacement Set of 5 for Office Chair, Office Chair Wheels Universal Size 11x22mm, Rubber Casters for All Floors, Heavy Duty, Smooth (Not for 1KEA, Silver)

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---

*Product available on Desertcart Belgium*
*Store origin: BE*
*Last updated: 2026-08-21*