--- product_id: 501913625 title: "MASTERY MART Office Chair Gas Lift Cylinder Replacement, 4\" Travel Length, Heavy Duty 1000 lbs, Hydraulic Pneumatic Shock Piston, Universal Size Fits Most Office Chairs, Class 4, Matte Black" brand: "mastery mart" price: "€ 46.51" currency: EUR in_stock: true reviews_count: 5 category: "Mastery Mart" url: https://www.desertcart.hr/products/501913625-mastery-mart-office-chair-gas-lift-cylinder-replacement-4-travel store_origin: HR region: Croatia --- # 4-inch adjustable travel Class 4 steel strength Universal fit design MASTERY MART Office Chair Gas Lift Cylinder Replacement, 4" Travel Length, Heavy Duty 1000 lbs, Hydraulic Pneumatic Shock Piston, Universal Size Fits Most Office Chairs, Class 4, Matte Black **Brand:** mastery mart **Price:** € 46.51 **Availability:** ✅ In Stock ## Summary > 🪑 Elevate your workspace with power, precision, and universal fit—because your chair deserves the best. ## Quick Answers - **What is this?** MASTERY MART Office Chair Gas Lift Cylinder Replacement, 4" Travel Length, Heavy Duty 1000 lbs, Hydraulic Pneumatic Shock Piston, Universal Size Fits Most Office Chairs, Class 4, Matte Black by mastery mart - **How much does it cost?** € 46.51 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/501913625-mastery-mart-office-chair-gas-lift-cylinder-replacement-4-travel) ## 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 - • **Unmatched Durability:** Premium Class 4 steel supports up to 1000 lbs—built to last through every work marathon. - • **360° Smooth Rotation:** Enjoy fluid swivel motion and eliminate annoying sinking issues for uninterrupted productivity. - • **Seamless Compatibility:** Fits most office and gaming chairs, including Herman Miller Aeron—upgrade without the hassle. - • **Effortless Installation:** Swap out your old cylinder in minutes with simple tools—no professional help needed. - • **Precision Height Control:** 4-inch travel range lets you customize your chair height from 10.3 to 14 inches for perfect ergonomic alignment. ## Overview The Mastery Mart Office Chair Gas Lift Cylinder Replacement is a heavy-duty, Class 4 pneumatic piston made from premium alloy steel. It offers a 4-inch adjustable travel length, supports up to 1000 lbs, and fits most office chairs on the market, including high-end models like the Herman Miller Aeron. Designed for easy installation and smooth 360-degree rotation, it eliminates sinking issues and ensures long-lasting ergonomic comfort. ## Description 🥇【Upgraded Class 4 Gas Cylinder】 Mastery Mart's office chair cylinder replacement is made of premium steel. With the latest technique, it is class 4 which meets the highest industry standard (BIFMA/ANSI). Known to be durable and extremely strong, it is capable of supporting up to 1000 lbs. 👑【Versatile 4-Inch Travel Length】Our office chair piston provides a 4-inch travel length and adjustable height options from 10.3 to 14 inches, making it a versatile choice for any home or office. 🏆【Universal Cylinder for Most Chairs】Compatible with various chair types like office chairs, gaming chairs, executive chairs, and more. Outer cylinder diameter is 2 inches (50mm) for the base hole, and inner cylinder diameter is 1.1 inches (28mm) for the seat hole. Please double-check measurements before ordering. This pneumatic piston cylinder will fit almost every office chair on the market including Herman Miller Aeron. 👏【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. ## Features - 🥇【Upgraded Class 4 Gas Cylinder】 Mastery Mart's office chair cylinder replacement is made of premium steel. With the latest technique, it is class 4 which meets the highest industry standard (BIFMA/ANSI). Known to be durable and extremely strong, it is capable of supporting up to 1000 lbs. - 👑【Versatile 4-Inch Travel Length】Our office chair piston provides a 4-inch travel length and adjustable height options from 10.3 to 14 inches, making it a versatile choice for any home or office. - 🏆【Universal Cylinder for Most Chairs】Compatible with various chair types like office chairs, gaming chairs, executive chairs, and more. Outer cylinder diameter is 2 inches (50mm) for the base hole, and inner cylinder diameter is 1.1 inches (28mm) for the seat hole. Please double-check measurements before ordering. This pneumatic piston cylinder will fit almost every office chair on the market including Herman Miller Aeron. - 👏【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 | B099R9BW5W | | Age Range Description | Adult | | Arm Style | Standard | | Back Style | Solid Back | | Best Sellers Rank | #51,197 in Home & Kitchen ( See Top 100 in Home & Kitchen ) #2,162 in Furniture Accessories | | Brand | Mastery Mart | | Colour | Matte Black | | Country of Origin | China | | Customer Reviews | 4.5 out of 5 stars 1,121 Reviews | | Form Factor | Recliner | | Frame Material | Alloy Steel | | Furniture Base Movement | Swivel | | Indoor Outdoor Usage | Indoor | | Is Assembly Required? | No | | Is Customisable? | No | | Is Foldable | No | | Item Depth | 9.84 inches | | Item Dimensions | 5.5 x 5.5 x 26 Centimeters | | Item Dimensions D x W x H | 25D x 5.1W x 5.1H Centimeters | | Item Weight | 1.03 Kilograms | | Leg Style | Straight Leg | | Manufacturer | Mastery Mart Co., Limited | | Manufacturer Part Number | MM-REP-GL02 | | Material | Alloy Steel | | Maximum Weight Recommendation | 453.59 kg | | Model Name | GAS-LIFT | | Model number | GAS-LIFT-GL | | Pattern | Solid | | Product Dimensions | 25D x 5.1W x 5.1H Centimeters | | Product Features | Durable, Easy to Replace and Install, Heave Duty, Quality Guaranteed, Universal Fit | | Reclining Position Count | 1 | | Recommended Uses For Product | Office | | Room Type | Office | | Seat Material Type | Foam | | Set Name | 4" Travel Length | | Size | 4'' Travel Length | | Style | Solid | | Wood Type | Alloy Steel | ## Product Details - **Brand:** MASTERY MART - **Color:** Polished Steel - **Material:** Metal - **Product Dimensions:** 1.97"D x 1.97"W x 11.02"H - **Size:** 4.5'' Travel Length ## Images ![MASTERY MART Office Chair Gas Lift Cylinder Replacement, 4" Travel Length, Heavy Duty 1000 lbs, Hydraulic Pneumatic Shock Piston, Universal Size Fits Most Office Chairs, Class 4, Matte Black - Image 1](https://m.media-amazon.com/images/I/51vgc3GW7CL.jpg) ![MASTERY MART Office Chair Gas Lift Cylinder Replacement, 4" Travel Length, Heavy Duty 1000 lbs, Hydraulic Pneumatic Shock Piston, Universal Size Fits Most Office Chairs, Class 4, Matte Black - Image 2](https://m.media-amazon.com/images/I/71HZeosVJ3L.jpg) ![MASTERY MART Office Chair Gas Lift Cylinder Replacement, 4" Travel Length, Heavy Duty 1000 lbs, Hydraulic Pneumatic Shock Piston, Universal Size Fits Most Office Chairs, Class 4, Matte Black - Image 3](https://m.media-amazon.com/images/I/713u5x1gliL.jpg) ![MASTERY MART Office Chair Gas Lift Cylinder Replacement, 4" Travel Length, Heavy Duty 1000 lbs, Hydraulic Pneumatic Shock Piston, Universal Size Fits Most Office Chairs, Class 4, Matte Black - Image 4](https://m.media-amazon.com/images/I/81ntvQaYN3L.jpg) ![MASTERY MART Office Chair Gas Lift Cylinder Replacement, 4" Travel Length, Heavy Duty 1000 lbs, Hydraulic Pneumatic Shock Piston, Universal Size Fits Most Office Chairs, Class 4, Matte Black - Image 5](https://m.media-amazon.com/images/I/81SCT4Z-F7L.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. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Review *by A***R on 7 January 2026* ### ⭐ Review *by H***R on 22 September 2025* ### ⭐⭐⭐⭐⭐ Review *by S***N on 31 August 2025* --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.hr/products/501913625-mastery-mart-office-chair-gas-lift-cylinder-replacement-4-travel](https://www.desertcart.hr/products/501913625-mastery-mart-office-chair-gas-lift-cylinder-replacement-4-travel) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-07-04*