---
product_id: 397805837
title: "10 Inches to 15 Inches Office Chair Gas Lift Cylinder Replacement, 4.5\" Stroke, Hydraulic Pneumatic Shock Piston, Heavy Duty, Universal Fit for Most Office Chairs, Class 4, Polished Steel"
brand: "mastery mart"
price: "R1525"
currency: ZAR
in_stock: true
reviews_count: 13
url: https://www.desertcart.co.za/products/397805837-10-inches-to-15-inches-office-chair-gas-lift-cylinder
store_origin: ZA
region: South Africa
---

# 4.5-inch adjustable stroke 360° seamless swivel Class 4 heavy-duty steel 10 Inches to 15 Inches Office Chair Gas Lift Cylinder Replacement, 4.5" Stroke, Hydraulic Pneumatic Shock Piston, Heavy Duty, Universal Fit for Most Office Chairs, Class 4, Polished Steel

**Brand:** mastery mart
**Price:** R1525
**Availability:** ✅ In Stock

## Summary

> ⚙️ Upgrade your office throne with power, precision, and premium durability!

## Quick Answers

- **What is this?** 10 Inches to 15 Inches Office Chair Gas Lift Cylinder Replacement, 4.5" Stroke, Hydraulic Pneumatic Shock Piston, Heavy Duty, Universal Fit for Most Office Chairs, Class 4, Polished Steel by mastery mart
- **How much does it cost?** R1525 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/397805837-10-inches-to-15-inches-office-chair-gas-lift-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:** Premium Class 4 steel construction supports up to 1000 lbs for unmatched durability.
- • **Risk-Free Upgrade:** Backed by 100% satisfaction guarantee with responsive customer support and hassle-free returns.
- • **Elevate Your Comfort:** Adjustable 4.5-inch height stroke for personalized seating ergonomics.
- • **Smooth & Stable Ride:** Eliminates sinking issues with reliable hydraulic pneumatic shock absorption and 360° rotation.
- • **Universal Compatibility:** Fits most office chairs with standard 2-inch base and 1-1/8-inch piston diameters.

## Overview

This Mastery Mart Class 4 gas lift cylinder replacement offers a 4.5-inch adjustable height range, fits most office chairs with standard dimensions, and supports up to 1000 lbs. Crafted from polished steel, it ensures smooth 360-degree swivel and eliminates sinking issues, making it a heavy-duty, universal upgrade for professional workspaces.

## Description

Full description not available

## Features

- 🏆【Adjustable Height 4.5 inches】The compressed length is 10.7 inches (272mm), the fully expanded length is 15.27 inches (388mm), sinking length is 1/2” (15mm), Stroke Length is 4.5 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 most office chair on the market. Please confirm these measurements before making a purchase. Not compatiable with 1KEA chair and some other model like there is a cable pin hook on the top of the cylinder.
- 🏆【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 Class 4 (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 |
|---------------|-------|
| Brand | MASTERY MART |
| Color | Polished Steel |
| Product Dimensions | 1.97"D x 1.97"W x 11.02"H |
| Size | 4.5'' Travel Length |
| Unit Count | 1 Count |
| Style | Modern |
| Pattern | Solid |
| Room Type | Office |
| Age Range (Description) | Adult |
| Included Components | Office Chair Gas Lift Cylinder Replacement |
| Shape | Cylindrical |
| Furniture base movement | Swivel |
| Indoor/Outdoor Usage | Indoor |
| Leg Style | Straight Leg |
| EU Spare Part Availability Duration | 1 Years |
| Reclining Position Count | 1 |
| Manufacturer | Mastery Mart Inc. |
| Item Weight | 2 pounds |
| Item model number | MM-REP-GL03-AD5-PO |
| Is Discontinued By Manufacturer | No |

## Product Details

- **Brand:** MASTERY MART
- **Color:** Polished Steel
- **Product Dimensions:** 1.97"D x 1.97"W x 11.02"H
- **Size:** 4.5'' Travel Length
- **Unit Count:** 1 Count

## Images

![10 Inches to 15 Inches Office Chair Gas Lift Cylinder Replacement, 4.5" Stroke, Hydraulic Pneumatic Shock Piston, Heavy Duty, Universal Fit for Most Office Chairs, Class 4, Polished Steel - Image 1](https://m.media-amazon.com/images/I/51GVMR+scIL.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”,

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Perfect replacement for a defective chair lift
  

*by M***S on Reviewed in the United States on June 25, 2024*

OK, so they are space force cool looking, but they work very well, smooth and quiet, easy on the floor

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Great replacement piston
  

*by M***O on Reviewed in the United States on April 28, 2024*

Worked perfectlyoin my Alienware Gamer chair and it was super easy to install. Don’t take the little blue plastic piece off like I did lol. It’s not a cap. I sit higher now than I did on the original which is better for me.

### ⭐⭐⭐⭐ 4.0 out of 5 stars







  
  
    Fits great on a Herman Miller Aeron with a slight adjustment
  

*by H***N on Reviewed in the United States on September 4, 2022*

Taking the original Herman Miller Aeron gas cylinder was a pain in the rear! I tried putting on a vice grip and hammering it to the side and it wouldn't budge one bit. I then had to take a pipe wrench and a cheater pipe, got my entire weight on it the same way I do with breaking bolts/nuts on cars and it finally budged.Putting it on, there was quite a bit of play in the mechanism box so I added some electrical tape to this gas cylinder to alleviate some of the wobble. Once the wobble in the mechanism box was gone, I put the base on and tried it out. Once you set the set screw, it works great, however, there is still a bit of wobble/play in the cylinder itself. There won't be any way to actually fix it without getting a different gas cylinder but the wobble isn't as extreme as if it were in the mechanism box.Another thing to note for people that believe it won't hold over time is that the set screw needs re-adjustment over time. I over adjusted the set screw and as it sunk further into the mechanism box over time, it would automatically hit the cylinder button and activate on it's own. For those that are having an issue with it not holding, you might want to try re-adjusting the set screw again.Overall, for the price, I'm extremely happy. One other thing is that it seems to be slightly higher than the original gas cylinder but that's typical with aftermarket gas cylinders. I'd rather pay $20 for a decent gas cylinder vs $60 for the original gas cylinder (without any wobble) any day. It'll eventually wear out anyways and another one will be required.

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*Product available on Desertcart South Africa*
*Store origin: ZA*
*Last updated: 2026-03-11*