--- 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: "VT12255" currency: VUV in_stock: true reviews_count: 5 category: "Mastery Mart" url: https://www.desertcart.vu/products/501913625-mastery-mart-office-chair-gas-lift-cylinder-replacement-4-travel store_origin: VU region: Vanuatu --- # 4.8'' adjustable stroke length Universal fit for most chairs 450 lbs heavy-duty capacity 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:** VT12255 **Availability:** ✅ In Stock ## Summary > ⚡ Elevate your office game with the ultimate heavy-duty gas lift upgrade! ## 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?** VT12255 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.vu](https://www.desertcart.vu/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 - • **Smooth & Seamless:** 360° rotation and fluid piston stroke for ergonomic comfort and easy movement - • **Effortless Upgrade:** Quick, no-fuss installation means you’re back to peak productivity in minutes - • **Unmatched Strength:** Supports up to 450 lbs (204 kg) with premium Class 4 polished steel durability - • **Confidence Guaranteed:** Backed by 100% satisfaction promise—risk-free upgrade to your workspace throne - • **Perfect Fit, Every Time:** Universal sizing fits most office and swivel chairs effortlessly—measure once, upgrade forever ## Overview The MASTERY MART Office Chair Gas Lift Cylinder Replacement is a premium Class 4 polished steel gas lift designed to support up to 450 lbs (204 kg). With a universal fit for most office and swivel chairs, it features a 4.8-inch adjustable stroke length and 360-degree smooth rotation. Easy to install and built to meet BIFMA/ANSI standards, this heavy-duty cylinder ensures ergonomic comfort and durability, backed by a 100% satisfaction guarantee. ## 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.vu/products/501913625-mastery-mart-office-chair-gas-lift-cylinder-replacement-4-travel](https://www.desertcart.vu/products/501913625-mastery-mart-office-chair-gas-lift-cylinder-replacement-4-travel) --- *Product available on Desertcart Vanuatu* *Store origin: VU* *Last updated: 2026-05-10*