---
product_id: 405014317
title: "8\" Long Stroke Adjustable Office Chair Gas Lift Cylinder Replacement Hydraulic Pneumatic Shock Piston Heavy Duty (450 lbs) for Tall Person Universal Size Fits Most Executive Chairs"
brand: "riyii"
price: "3592 som"
currency: KGS
in_stock: false
reviews_count: 8
url: https://www.desertcart.kg/products/405014317-8-long-stroke-adjustable-office-chair-gas-lift-cylinder-replacement
store_origin: KG
region: Kyrgyzstan
---

# 450 lbs heavy-duty support 8-inch adjustable height range Universal fit for most executive chairs 8" Long Stroke Adjustable Office Chair Gas Lift Cylinder Replacement Hydraulic Pneumatic Shock Piston Heavy Duty (450 lbs) for Tall Person Universal Size Fits Most Executive Chairs

**Brand:** riyii
**Price:** 3592 som
**Availability:** ❌ Out of Stock

## Summary

> 🚀 Elevate your workspace with power and precision!

## Quick Answers

- **What is this?** 8" Long Stroke Adjustable Office Chair Gas Lift Cylinder Replacement Hydraulic Pneumatic Shock Piston Heavy Duty (450 lbs) for Tall Person Universal Size Fits Most Executive Chairs by riyii
- **How much does it cost?** 3592 som with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.kg](https://www.desertcart.kg/products/405014317-8-long-stroke-adjustable-office-chair-gas-lift-cylinder-replacement)

## Best For

- riyii enthusiasts

## Why This Product

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

## Key Features

- • **Custom Comfort:** 8-inch adjustable stroke lets you tailor your chair height for perfect ergonomic alignment.
- • **Effortless Upgrade:** Simple installation means no extra screws or tools—get back to work faster.
- • **Unmatched Strength:** Class 4 heavy-duty gas lift supports up to 450 lbs with ease, built for power users.
- • **Risk-Free Confidence:** 100% satisfaction guaranteed with responsive support and full reimbursement if unsatisfied.
- • **Seamless Compatibility:** Universal sizing fits most executive, task, and drafting chairs—upgrade without hassle.

## Overview

The RiYii 8" Long Stroke Adjustable Gas Lift Cylinder is a heavy-duty, class 4 hydraulic piston designed to support up to 450 lbs. With an 8-inch adjustable height range (14.5" to 22.5"), it fits most executive and office chairs universally. Its durable aluminum alloy construction ensures long-lasting performance, while easy installation and a satisfaction guarantee make it the perfect upgrade for tall professionals seeking ergonomic comfort and reliability.

## Description

Buy RiYii 8" Long Stroke Adjustable Office Chair Gas Lift Cylinder Replacement Hydraulic Pneumatic Shock Piston Heavy Duty (450 lbs) for Tall Person Universal Size Fits Most Executive Chairs on desertcart.com ✓ FREE SHIPPING on qualified orders

Review: Good item - Excellent choice, as advertised.
Review: Tall & just what I needed - I have a secret lab titan , but it was too short for my recently installed wall mounted desk , so I got this , now my feet don’t touch the ground ( I am 6’0ft) but my body is positioned just right for my desk. Sturdy , I never feel like it’s going to break . The install was tricky but if you have a rubber mallet to remove the old piston , then you should be good to go .

## Features

- Extra Heavy Duty: This gas lift cylinder is class 4 level, heavy duty construction, it can even support up to 450 lbs without fail.
- Adjustable Height: The height of the hydraulic gas lift cylinder fully compressed is 14.5 ", and the height fully expanded is 22.5". This means that it has an 8-inch adjustable height that allows you to rise higher and use your office chair in more scenarios.
- Universal Size: This 8" Long Stroke Gas Lift is tall center support column of the chair. Outer cylinder: 2 inches, Inner cylinder: 1. 1 inches. Please measure dimensions before you purchase it. It suitable for most executive office chairs, task chair, office chair, rolling stool, drafting stool, computer chairs.
- Easy Installation: Can be installed easily with no additional screws required. Usually you may need to use a hammer to take out the old gas lift cylinder and replace it with a new one. (We suggest you search for "gas lift replacement" on youtube for instructions)
- GUARANTEED: If any problem, please feel free to contact us, we'll provide our advice or solutions. If you don't absolutely enjoy it, we guarantee you that we will reimburse you for 100% of your order.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09H5MHWLC |
| Additional Features | Adjustable Height, Rolling |
| Age Range Description | Adult |
| Arm Style | Armless |
| Back Style | Solid Back |
| Best Sellers Rank | #589,768 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #789 in Mechanical Shock Absorbers |
| Brand | RiYii |
| Brand Name | RiYii |
| Color | Black |
| Customer Reviews | 4.3 out of 5 stars 73 Reviews |
| Fabric Type | Class 4,steel Cylinder Column With Mate Black Finish |
| Finish Types | matte black finish |
| Frame Material Type | Alloy Steel |
| Furniture Base Movement | Glide |
| Included Components | No components included |
| Indoor Outdoor Usage | Indoor |
| Item Dimensions | 2 x 1.1 x 14.5 inches |
| Item Dimensions D x W x H | 2"D x 1.1"W x 14.5"H |
| Item Weight | 3 pounds |
| Leg Style | sled base |
| Manufacturer | RiYii |
| Material | Aluminum |
| Material Type | Aluminum |
| Maximum Weight Recommendation | 450 pounds |
| Model Number | RiYii |
| Number of Height Positions | 2 |
| Pattern | Solid |
| Product Dimensions | 2"D x 1.1"W x 14.5"H |
| Reclining Position Count | 1 |
| Recommended Uses For Product | Office |
| Room Type | Office |
| Seat Material | Alloy Steel |
| Shape | Cylindrical |
| Size | 8 Inch |
| Surface Recommendation | Hard Floor |
| UPC | 723265454547 |
| Unit Count | 1 Count |

## Product Details

- **Brand:** RiYii
- **Color:** Black
- **Material:** Aluminum
- **Product Dimensions:** 2"D x 1.1"W x 14.5"H
- **Size:** 8 Inch

## Images

![8" Long Stroke Adjustable Office Chair Gas Lift Cylinder Replacement Hydraulic Pneumatic Shock Piston Heavy Duty (450 lbs) for Tall Person Universal Size Fits Most Executive Chairs - Image 1](https://m.media-amazon.com/images/I/51t8vWUSUGL.jpg)
![8" Long Stroke Adjustable Office Chair Gas Lift Cylinder Replacement Hydraulic Pneumatic Shock Piston Heavy Duty (450 lbs) for Tall Person Universal Size Fits Most Executive Chairs - Image 2](https://m.media-amazon.com/images/I/5156iIp7chL.jpg)
![8" Long Stroke Adjustable Office Chair Gas Lift Cylinder Replacement Hydraulic Pneumatic Shock Piston Heavy Duty (450 lbs) for Tall Person Universal Size Fits Most Executive Chairs - Image 3](https://m.media-amazon.com/images/I/61HAs3GUo+L.jpg)
![8" Long Stroke Adjustable Office Chair Gas Lift Cylinder Replacement Hydraulic Pneumatic Shock Piston Heavy Duty (450 lbs) for Tall Person Universal Size Fits Most Executive Chairs - Image 4](https://m.media-amazon.com/images/I/61WXCBpyS-L.jpg)
![8" Long Stroke Adjustable Office Chair Gas Lift Cylinder Replacement Hydraulic Pneumatic Shock Piston Heavy Duty (450 lbs) for Tall Person Universal Size Fits Most Executive Chairs - Image 5](https://m.media-amazon.com/images/I/71TKhjlyrGL.jpg)

## Questions & Answers

**Q: Trying to find the same brand but smaller lift, like around 5 inch**
A: Look at quality and reviews. That's what I did. There are many lift brands that are universal fit. 
I got the 8" as I am over 6' tall.
After recovering my Staples office chair, I realized I probably should have gotten a shorter one. It works, but it goes from low where my feet just hit the floor to stool height.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good item
*by R***O on July 22, 2026*

Excellent choice, as advertised.

### ⭐⭐⭐⭐⭐ Tall & just what I needed
*by G***. on April 27, 2022*

I have a secret lab titan , but it was too short for my recently installed wall mounted desk , so I got this , now my feet don’t touch the ground ( I am 6’0ft) but my body is positioned just right for my desk. Sturdy , I never feel like it’s going to break . The install was tricky but if you have a rubber mallet to remove the old piston , then you should be good to go .

### ⭐⭐⭐⭐⭐ Easy installation and smooth operation
*by B***Z on October 5, 2024*

Purchased a new and comfortable office chair and wanted to be able to have it rise higher. So bought this 8" cylinder to replace OEM. Worked fine and liked the pricing. Appears solidly made.

## Frequently Bought Together

- RiYii 8" Long Stroke Adjustable Office Chair Gas Lift Cylinder Replacement Hydraulic Pneumatic Shock Piston Heavy Duty (450 lbs) for Tall Person Universal Size Fits Most Executive Chairs
- TICONN Office Chair Caster Wheels Set of 5 for Tile, Hardwood Floors and Carpets, Universal Fit for Most Chairs (Black)

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**Shop now:** [https://www.desertcart.kg/products/405014317-8-long-stroke-adjustable-office-chair-gas-lift-cylinder-replacement](https://www.desertcart.kg/products/405014317-8-long-stroke-adjustable-office-chair-gas-lift-cylinder-replacement)

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*Product available on Desertcart Kyrgyzstan*
*Store origin: KG*
*Last updated: 2026-09-11*