---
product_id: 518784596
title: "2.5 inch Office Chair Gas Lift Cylinder-Office Chair Replacement Parts, Heavy-Duty Gas Lift Cylinder Fits Most Chairs,Highest End Class 4 Hydraulic Pneumatic Piston,Universal Size"
brand: "hosali"
price: "A$89"
currency: AUD
in_stock: true
reviews_count: 5
category: "Hosali"
url: https://www.desertcart.com.au/products/518784596-2-5-inch-office-chair-gas-lift-cylinder-office-chair
store_origin: AU
region: Australia
---

# 2.5-inch piston stroke for smooth height adjustment Universal fit for 99% of office chairs Class 4 heavy-duty anti-explosion gas lift cylinder 2.5 inch Office Chair Gas Lift Cylinder-Office Chair Replacement Parts, Heavy-Duty Gas Lift Cylinder Fits Most Chairs,Highest End Class 4 Hydraulic Pneumatic Piston,Universal Size

**Brand:** hosali
**Price:** A$89
**Availability:** ✅ In Stock

## Summary

> 🪑 Elevate your workspace comfort—because your chair deserves an upgrade, not a replacement!

## Quick Answers

- **What is this?** 2.5 inch Office Chair Gas Lift Cylinder-Office Chair Replacement Parts, Heavy-Duty Gas Lift Cylinder Fits Most Chairs,Highest End Class 4 Hydraulic Pneumatic Piston,Universal Size by hosali
- **How much does it cost?** A$89 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.au](https://www.desertcart.com.au/products/518784596-2-5-inch-office-chair-gas-lift-cylinder-office-chair)

## Best For

- hosali enthusiasts

## Why This Product

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

## Key Features

- • **Built to Endure:** Class 4 hydraulic piston certified to withstand 120,000 lifts and support up to 1000 lbs with anti-explosion safety.
- • **Risk-Free Upgrade:** Backed by thorough quality checks and responsive customer support for a hassle-free, long-lasting chair revival.
- • **Universal Compatibility:** Fits virtually all office, executive, salon chairs, and rolling stools with a 50mm base hole—one upgrade for all.
- • **DIY Friendly Installation:** Replace your chair’s gas lift in under 5 minutes with included gloves and simple tools—no extra screws needed.
- • **Effortless Height Control:** Adjust your chair height seamlessly from 8.26 to 10.82 inches for perfect ergonomic comfort.

## Overview

The HOSALI 2.5 inch Office Chair Gas Lift Cylinder is a premium Class 4 hydraulic pneumatic piston designed for universal compatibility with 99% of office chairs. It offers a smooth height adjustment range from 8.26 to 10.82 inches, supports up to 1000 lbs, and features an anti-explosion safety design. Easy to install and backed by a hassle-free warranty, it revitalizes your chair’s comfort and durability without the cost of a new chair.

## Description

Product description 2.5 inch Office Chair Gas Lift Cylinder-Office Chair Replacement Parts Safety Warning Always wear gloves when handling the gas lift cylinder and use a rubber mallet to remove the old cylinder to prevent injury. Do not exceed the maximum weight capacity of 1000 lbs (453.59 kg).

Review: Je l'ai commandé, par ce qu'il avait les dimensions que j'ai mesurés sur l'ancien. Mais finalement j'aurais été mieux de commander un plus long. Mis a jour de l'évaluation: Après seulement 3 mois, le vérin ne garde plus ça position.
Review: Perfect for my chair. Great price too.

## Features

- 2.5’’ PISTON STROKE FOR ADJUSTING CHAIR HEIGHT: This chair piston extends from 210mm to 275mm ( 8.26 - 10.82"), minimum length: 8.26 inches; maximum length when fully extended: 10.82 inches, travel from the highest to the lowest point, replace your office chair gas cylinder and stop worrying about disturbing anyone, 360 degree rotation to all directions, freely lift and rotate your office chair smoothly and quietly
- HEAVY DUTY CLASS 4 PISTON - ANTI-EXPLOSION CYLINDER: Our office chair piston passed the top-level test of BIFMA certification by lifting up and down 120,000 times without fail, they built with high-quality solid steel that can support maximum weight up to 1000 lbs. The safety decompression structure design will be more secure than other gas lift cylinder you ever use
- UNIVERSAL SIZE THAT FITS MOST CHAIRS: This chair cylinder replacement will fit all office chair bases with 50mm(2 inches) standard centre hole. Ideal to replace gas lift cylinder on 99% standard office chairs, task chairs, executive chairs, salon chairs and rolling stools on the market. SAVE MONEY - to fix your sinking office chair by replacing the cylinder instead of spending hundred bucks for a brand new computer chair. ( Please measure dimensions before purchasing )
- EASY INSTALLATION: It comes with gloves and chair cylinder. Usually you may need to use a rubber mallet to take out the old gas lift cylinder from chair base and can be installed easily without additional screws required.Spending 5 minutes will bring a new life to your old office chair. We suggest you watch videos on Youtube before you start the installation (search "office chair gas lift cylinder replacement" )
- HASSLE-FREE WARRANTY: All our office chair replacement parts are 100% inspection before shipping. Your satisfaction is always our top priority. If for some reason the cylinder fails, leaks, or starts sinking, contact our professional after-service team via email, our direct after-sale team will reach out to you and timely solve your problems

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | HOSALI |
| Model Number | 64-oocr-black |
| Colour | Black |
| Package Dimensions | 24.1 x 6.4 x 6.1 cm; 830 g |
| Special Features | Stackable |
| Item Weight | 830 g |

## Product Details

- **Brand:** HOSALI
- **Colour:** Black
- **Size:** 2.5
- **Back style:** Solid Back
- **Special feature:** Stackable

## Images

![2.5 inch Office Chair Gas Lift Cylinder-Office Chair Replacement Parts, Heavy-Duty Gas Lift Cylinder Fits Most Chairs,Highest End Class 4 Hydraulic Pneumatic Piston,Universal Size - Image 1](https://m.media-amazon.com/images/I/41ffIaazPKL._AC_US100_.jpg)
![2.5 inch Office Chair Gas Lift Cylinder-Office Chair Replacement Parts, Heavy-Duty Gas Lift Cylinder Fits Most Chairs,Highest End Class 4 Hydraulic Pneumatic Piston,Universal Size - Image 2](https://m.media-amazon.com/images/I/41fgTDvN8-L._AC_US100_.jpg)
![2.5 inch Office Chair Gas Lift Cylinder-Office Chair Replacement Parts, Heavy-Duty Gas Lift Cylinder Fits Most Chairs,Highest End Class 4 Hydraulic Pneumatic Piston,Universal Size - Image 3](https://m.media-amazon.com/images/I/41niyasj89L._AC_US100_.jpg)
![2.5 inch Office Chair Gas Lift Cylinder-Office Chair Replacement Parts, Heavy-Duty Gas Lift Cylinder Fits Most Chairs,Highest End Class 4 Hydraulic Pneumatic Piston,Universal Size - Image 4](https://m.media-amazon.com/images/I/41t16sQOLML._AC_US100_.jpg)
![2.5 inch Office Chair Gas Lift Cylinder-Office Chair Replacement Parts, Heavy-Duty Gas Lift Cylinder Fits Most Chairs,Highest End Class 4 Hydraulic Pneumatic Piston,Universal Size - Image 5](https://m.media-amazon.com/images/I/51kKpFegyIL._AC_US100_.jpg)

## Customer Reviews

### ⭐⭐ Review
*by R***. on 28 June 2023*

Je l'ai commandé, par ce qu'il avait les dimensions que j'ai mesurés sur l'ancien. Mais finalement j'aurais été mieux de commander un plus long. Mis a jour de l'évaluation: Après seulement 3 mois, le vérin ne garde plus ça position.

### ⭐⭐⭐⭐⭐ Review
*by C***S on 29 September 2025*

Perfect for my chair. Great price too.

### ⭐⭐⭐⭐⭐ Review
*by R***N on 23 September 2025*

Worked well without any crazy tools, basically I was able to use a metal hammer to remove both pieces of the piston before reinstalling the new one. The first thing you do is go ahead and lay the chair down to have access to the underside of the feet, then with your hammer you would need to take a series of firm hits to the bottom of the broken cylinder that will eventually free it from the base. Once you remove the cylinder from the base there's a chance that the actual piston that's connected to the bottom of the chair will still be attached, from there you would hit the piston from the side with a downward force and then the underside with the upward force and that will loosen the friction lock and it will pull right out. Once you get that to reinstall the new piston is easy drop the bottom into the wheel section of the chair pull off the access cap for the piston and put your old chair back on the new piston and carefully sit on the chair and you have created the friction lock and it is ready to go. I have the GT racing Ace chair series and this cylinder worked great, it gave me extra height but will adjust to the lowest position if needed and I wouldn't worry about colors because if you reuse the cylinder cover then you won't see if you purchased a silver or black piston so save yourself a couple bucks.

## Frequently Bought Together

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*Product available on Desertcart Australia*
*Store origin: AU*
*Last updated: 2026-01-25*