---
product_id: 456953868
title: "14 Inches-22 Inches Extra Long Gas Lift Cylinder Replacement, 8'' Stroke, Tall Hydraulic Pneumatic Shock Piston, Heavy Duty, Universal Fit for Drafting Chairs Bar Stools, Class 4 (Polished Steel)"
brand: "mastery mart"
price: "¥19232"
currency: JPY
in_stock: true
category: "Mastery Mart"
url: https://www.desertcart.jp/products/456953868-14-inches-22-inches-extra-long-gas-lift-cylinder-replacement
store_origin: JP
region: Japan
---

# Universal fit for most office chairs 4'' adjustable height stroke Class 4 heavy-duty steel build 14 Inches-22 Inches Extra Long Gas Lift Cylinder Replacement, 8'' Stroke, Tall Hydraulic Pneumatic Shock Piston, Heavy Duty, Universal Fit for Drafting Chairs Bar Stools, Class 4 (Polished Steel)

**Brand:** mastery mart
**Price:** ¥19232
**Availability:** ✅ In Stock

## Summary

> 💼 Upgrade your throne with heavy-duty precision and effortless style!

## Quick Answers

- **What is this?** 14 Inches-22 Inches Extra Long Gas Lift Cylinder Replacement, 8'' Stroke, Tall Hydraulic Pneumatic Shock Piston, Heavy Duty, Universal Fit for Drafting Chairs Bar Stools, Class 4 (Polished Steel) by mastery mart
- **How much does it cost?** ¥19232 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/456953868-14-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 polished steel supports up to 1000 lbs without compromise.
- • **Effortless Upgrade:** Quick, tool-friendly installation eliminates annoying chair sinking.
- • **Elevate Your Comfort:** Smooth 4-inch height adjustment for personalized seating ergonomics.
- • **Confidence Guaranteed:** Backed by responsive support and satisfaction promise for worry-free use.
- • **Seamless Compatibility:** Universal dimensions fit top brands including Herman Miller Aeron.

## Overview

This 9 to 13-inch adjustable office chair gas cylinder replacement features a 4-inch stroke and is crafted from polished Class 4 steel, supporting up to 1000 lbs. Designed for universal compatibility with most office chairs, including premium models like Herman Miller Aeron, it ensures smooth height adjustment and 360-degree swivel. Easy to install and built to last, it eliminates sinking issues and comes with a satisfaction guarantee for professional-grade reliability.

## Description

Buy 9 Inches to 13 Inches Office Chair Cylinder Replacement, 4'' Stroke, Heavy Duty 1000 lbs, Hydraulic Pneumatic Shock Piston, Universal Gas Cylinder Fit for Most Office Chairs, Class 4 (Polished Steel): Home Office Desk Chairs - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

## Features

- 🏆【Adjustable Height 4 inches】The compressed length is 9.88 inches (251mm), the fully expanded length is 13.6 inches (346mm), travel 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 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 | B0859WSH26 |
| Additional Features | Durable, Easy to Replace and Install, Heave Duty, Quality Guaranteed, Universal Fit |
| Age Range Description | Adult |
| Arm Style | Armless |
| Best Sellers Rank | #15,487 in Office Products ( See Top 100 in Office Products ) #330 in Office Furniture Accessories |
| Brand Name | MASTERY MART |
| Color | Polished Steel |
| Customer Reviews | 4.4 4.4 out of 5 stars (2,595) |
| Fabric Type | Metal |
| Finish Types | Polished |
| Form Factor | Recliner |
| Frame Material Type | Metal |
| Furniture Base Movement | Swivel |
| Indoor Outdoor Usage | Indoor |
| Item Depth | 9.8 inches |
| Item Dimensions | 2.2 x 2.24 x 10.75 inches |
| Item Dimensions D x W x H | 9.8"D x 2"W x 2"H |
| Item Type Name | Electroplating |
| Item Weight | 1 kg |
| Leg Style | Straight Leg |
| Manufacturer | Mastery Mart Inc. |
| Manufacturer Part Number | MF-PT001B |
| Material Type | Alloy Steel |
| Maximum Weight Recommendation | 146 pounds |
| Model Number | GAS-LIFT-GL |
| Pattern | Solid |
| Reclining Position Count | 1 |
| Recommended Uses For Product | Office |
| Room Type | Office |
| Seat Depth | 9.7 inches |
| Seat Material | Metal |
| Size | 4'' Travel Length |
| Style Name | Solid |
| Surface Recommendation | Hard Floor |
| Unit Count | 1 Count |

## Product Details

- **Brand:** MASTERY MART
- **Color:** Polished Steel
- **Material:** Alloy Steel
- **Product Dimensions:** 9.8"D x 2"W x 2"H
- **Size:** 4'' Travel Length

## Images

![14 Inches-22 Inches Extra Long Gas Lift Cylinder Replacement, 8'' Stroke, Tall Hydraulic Pneumatic Shock Piston, Heavy Duty, Universal Fit for Drafting Chairs Bar Stools, Class 4 (Polished Steel) - Image 1](https://m.media-amazon.com/images/I/41AvLFBWPzL.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.

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-08-10*