--- product_id: 811995545 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: "€ 34.27" currency: EUR in_stock: true reviews_count: 8 url: https://www.desertcart.hr/products/811995545-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 compatibility 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:** € 34.27 **Availability:** ✅ In Stock ## Summary > 🚀 Elevate your workspace with power, precision, and premium comfort! ## 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?** € 34.27 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/811995545-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:** Class 4 gas lift meets top BIFMA/ANSI standards, supporting up to 1000 lbs with premium steel strength. - • **Seamless Universal Fit:** Designed to fit most office and gaming chairs, including Herman Miller Aeron, with precise 2-inch base and 1.1-inch seat diameters. - • **Effortless Installation:** Swap out your old cylinder in minutes—no hassle, no sinking issues, just smooth 360° swivel and reliable lift. - • **Perfect Height Flexibility:** 4-inch travel length offers smooth, customizable seating from 10.3 to 14 inches—tailored comfort for every desk setup. - • **Confidence in Every Purchase:** Backed by 100% satisfaction guarantee with responsive support, replacements, or refunds—your upgrade is risk-free. ## Overview The MASTERY MART Office Chair Gas Lift Cylinder Replacement is a heavy-duty, Class 4 hydraulic piston engineered from premium steel to support up to 1000 lbs. Featuring a versatile 4-inch travel length and universal sizing, it fits most office chairs including high-end models like Herman Miller Aeron. Designed for easy installation and smooth 360-degree rotation, this matte black cylinder ensures durable, adjustable seating with a satisfaction guarantee for professional-grade reliability. ## 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 | |---------------|-------| | Age Range Description | Adult | | Arm Style | Standard | | Asin | B099R9BW5W | | Back Style | Solid Back | | Best Sellers Rank | #103,758 in Home & Kitchen (See Top 100 in Home & Kitchen) #596 in Furniture Accessories | | Brand | Mastery Mart | | Colour | Matte Black | | Country Of Origin | China | | Customer Reviews | 4.5 4.5 out of 5 stars (1,238) 4.5 out of 5 stars | | Form Factor | Recliner | | Frame Material | Alloy Steel | | Furniture Base Movement | Swivel | | Included Components | No components included | | 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 | | Maximum Weight Recommendation | 453.59 kg | | Model Name | GAS-LIFT | | Model Number | GAS-LIFT-GL | | Number Of Items | 1 | | Number Of Packs | 1 | | Pattern | Solid | | 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 | | Shape | Cylindrical | | Size | 4'' Travel Length | | Style | Solid | | Wood Type | Alloy Steel | ## Product Details - **Brand:** MASTERY MART - **Color:** Matte Black - **Material:** Alloy Steel - **Product Dimensions:** 9.84"D x 2"W x 2"H - **Size:** 4'' 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) ## 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 ### ⭐⭐⭐⭐⭐ its great product *by on Reviewed in India 9 May 2026* good product for now, the product height is good but the packaging was very bad not protection at all , its was little damaged , but i managed , i will update later how the hydraulic works = ### ⭐ 2nd hand non workable item delivered *by on Reviewed in India 13 May 2026* The seller sent a second item and that item was not working as well😭💀 ### ⭐ Used product *by on Reviewed in India 21 June 2026* Don't buy this product. Used product, low quality meterial. Low weight. --- ## 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/811995545-mastery-mart-office-chair-gas-lift-cylinder-replacement-4-travel](https://www.desertcart.hr/products/811995545-mastery-mart-office-chair-gas-lift-cylinder-replacement-4-travel) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-09-11*