---
product_id: 371730426
title: "14 Inches-22 Inches Extra Long Gas Lift Cylinder Replacement, 8\" Stroke, Hydraulic Pneumatic Shock Piston, Heavy Duty 1000lbs, Universal Fit For Drafting Chairs Bar Stools, Class 4, Black"
brand: "mastery mart"
price: "332.73 DT"
currency: TND
in_stock: true
category: "Mastery Mart"
url: https://www.desertcart.tn/products/371730426-14-inches-22-inches-extra-long-gas-lift-cylinder-replacement
store_origin: TN
region: Tunisia
---

# 8-inch adjustable stroke Universal fit for drafting chairs & stools Class 4 heavy-duty steel 14 Inches-22 Inches Extra Long Gas Lift Cylinder Replacement, 8" Stroke, Hydraulic Pneumatic Shock Piston, Heavy Duty 1000lbs, Universal Fit For Drafting Chairs Bar Stools, Class 4, Black

**Brand:** mastery mart
**Price:** 332.73 DT
**Availability:** ✅ In Stock

## Summary

> 🪑 Upgrade your chair, upgrade your hustle!

## Quick Answers

- **What is this?** 14 Inches-22 Inches Extra Long Gas Lift Cylinder Replacement, 8" Stroke, Hydraulic Pneumatic Shock Piston, Heavy Duty 1000lbs, Universal Fit For Drafting Chairs Bar Stools, Class 4, Black by mastery mart
- **How much does it cost?** 332.73 DT with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/371730426-14-inches-22-inches-extra-long-gas-lift-cylinder-replacement)

## 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 supports up to 1000 lbs without compromise.
- • **Effortless Upgrade:** DIY installation eliminates sinking issues and restores 360° swivel freedom.
- • **Elevate Your Workspace:** Smooth 8-inch height adjustment for perfect ergonomic positioning.
- • **Seamless Compatibility:** Fits most drafting chairs and bar stools with precise 2" diameter base.
- • **Confidence in Every Seat:** Backed by Mastery Mart’s satisfaction guarantee for worry-free replacement.

## Overview

This 14-22 inch extra-long gas lift cylinder offers an 8-inch adjustable stroke, crafted from premium Class 4 steel to support up to 1000 lbs. Designed for universal fit on drafting chairs and bar stools, it ensures smooth height adjustment and 360-degree rotation. Easy to install and built to eliminate sinking issues, it’s the ultimate upgrade for your professional workspace comfort.

## Description

Buy 14 Inches-22 Inches Extra Long Gas Lift Cylinder Replacement, 8" Stroke, Hydraulic Pneumatic Shock Piston, Heavy Duty 1000lbs, Universal Fit For Drafting Chairs Bar Stools, Class 4, Black: Home Office Desk Chairs - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

## Features

- 🏆【Adjustable Height 8 inches】The compressed length is 13.97 inches (355mm), the fully expanded length is 21.85 inches (555mm), travel length is 8 inches, which allows your chairs to rise higher. (Note: Please measure the length of the outer cylinder before purchase).
- 🏆【Dimensions of Chair Cylinder】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 drafting chairs and bar stools. Please confirm these measurements before making a purchase. Not compatible with 1KEA chair and some other models that have 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 pneumatic lift replacement supports 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 | B099RMKP99 |
| Additional Features | Durable, Easy to Replace and Install, Heave Duty, Quality Guaranteed, Universal Fit |
| Age Range Description | Adult |
| Arm Style | Armless |
| Assembly Instructions Description | DIY |
| Back Style | Mid Back |
| Best Sellers Rank | #14,550 in Office Products ( See Top 100 in Office Products ) #319 in Office Furniture Accessories |
| Brand Name | MASTERY MART |
| Color | Matte Black |
| Customer Reviews | 4.5 4.5 out of 5 stars (3,032) |
| Fill Material | Foam |
| Form Factor | Tower |
| Frame Material Type | Alloy Steel |
| Included Components | No components included |
| Indoor Outdoor Usage | Indoor |
| Item Depth | 13.9 inches |
| Item Dimensions | 14.96 x 2.17 x 2.17 inches |
| Item Dimensions D x W x H | 13.9"D x 2"W x 2"H |
| Item Weight | 0.8 kg |
| Leg Style | Straight Leg |
| Manufacturer | Mastery Mart Co., Limited |
| Manufacturer Part Number | MM-REP-GL05 |
| Material Type | Alloy Steel |
| Maximum Weight Recommendation | 1000 pounds |
| Model Number | GAS-AD8 |
| Number of Items | 1 |
| Number of Packs | 1 |
| Pattern | Solid |
| Product Care Instructions | Wipe Clean |
| Reclining Position Count | 1 |
| Room Type | Office |
| Set Name | Drafting Chair and Bar Stool Set |
| Shape | Cylindrical |
| Size | 8'' Travel Length |
| Style Name | Solid |
| Unit Count | 1 Count |

## Product Details

- **Brand:** MASTERY MART
- **Color:** Matte Black
- **Material:** Alloy Steel
- **Product Dimensions:** 13.9"D x 2"W x 2"H
- **Size:** 8'' Travel Length

## Images

![14 Inches-22 Inches Extra Long Gas Lift Cylinder Replacement, 8" Stroke, Hydraulic Pneumatic Shock Piston, Heavy Duty 1000lbs, Universal Fit For Drafting Chairs Bar Stools, Class 4, Black - Image 1](https://m.media-amazon.com/images/I/51uQhIt18EL.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 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 ( 9.7 Inch -13.6 Inch ); 4.8“ stroke ( 10.7 Inch -15.5 Inch ); 6“ stroke ( 11.5 Inch -17.5 Inch ); 8“ stroke ( 14.7 Inch -22.2 Inch ).

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

## Frequently Bought Together

- 14 Inches-22 Inches Extra Long Gas Lift Cylinder Replacement, 8" Stroke, Hydraulic Pneumatic Shock Piston, Heavy Duty 1000lbs, Universal Fit For Drafting Chairs Bar Stools, Class 4, Black
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*Product available on Desertcart Tunisia*
*Store origin: TN*
*Last updated: 2026-08-13*