--- product_id: 501913622 title: "MASTERY MART Office Chair Gas Lift Cylinder Replacement, Heavy Duty 450 LBs/204 KGs, Universal Size Fits Most Office Chair and Swivel Chair, 4.8'' Length Extension,Highest End Class 4 (Polished Steel)" brand: "mastery mart" price: "VT32959" currency: VUV in_stock: true reviews_count: 5 category: "Mastery Mart" url: https://www.desertcart.vu/products/501913622-mastery-mart-office-chair-gas-lift-cylinder-replacement-heavy-duty store_origin: VU region: Vanuatu --- # MASTERY MART Office Chair Gas Lift Cylinder Replacement, Heavy Duty 450 LBs/204 KGs, Universal Size Fits Most Office Chair and Swivel Chair, 4.8'' Length Extension,Highest End Class 4 (Polished Steel) **Brand:** mastery mart **Price:** VT32959 **Availability:** ✅ In Stock ## Quick Answers - **What is this?** MASTERY MART Office Chair Gas Lift Cylinder Replacement, Heavy Duty 450 LBs/204 KGs, Universal Size Fits Most Office Chair and Swivel Chair, 4.8'' Length Extension,Highest End Class 4 (Polished Steel) by mastery mart - **How much does it cost?** VT32959 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/501913622-mastery-mart-office-chair-gas-lift-cylinder-replacement-heavy-duty) ## 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 ## Description Product description MASTERY MART Office Chair Gas Lift Cylinder Replacement, Heavy Duty 450 LBs/204 KGs, Universal Size Fits Most Office Chair and Swivel Chair, 4.8'' Length Extension,Highest End Class 4 (Polished Steel) Safety Warning Do not exceed the maximum weight capacity of 1000 lbs. Ensure proper assembly to avoid sinking issues. Review: I couldn't fix my chair like most of the videos showed. However, there was one video that showed how you could take the inner tube out and replace just that part. That worked fine. So if you are struggling taking the larger entire piece of the chair base out.. look for the video where you can just take the inner hydraulic one out and just replace that part. Review: Got the chair perfect Only problem is getting the old one out of the chair… a pipe wrench is only way to remove the old one…..watch the You Tube videos ## Features - MASTERY MART Office Chair Gas Lift Cylinder Replacement, Heavy Duty 450 LBs/204 KGs, Universal Size Fits Most Office Chair and Swivel Chair, 4.8'' Length Extension,Highest End Class 4 (Polished Steel) ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B099RB3KV7 | | Age Range Description | Adult | | Best Sellers Rank | 1,924,625 in Home & Kitchen ( See Top 100 in Home & Kitchen ) 3,556 in Desk Chairs | | Brand Name | MASTERY MART | | Colour | Polished Steel | | Customer Reviews | 4.0 4.0 out of 5 stars (27) | | EU Spare Part Availability Duration | 1 Years | | Frame Material Type | Alloy Steel | | Furniture Base Movement | Swivel | | Included Components | Office Chair Gas Lift Cylinder Replacement | | Indoor Outdoor Usage | Indoor | | Is Assembly Required? | No | | Item Depth | 2 inches | | Item Dimensions | 28 x 5.5 x 5.5 centimetres | | Item Dimensions D x W x H | 5D x 5W x 28H centimetres | | Item Shape | Cylindrical | | Item Type Name | Office Chair Gas Lift Cylinder Replacement | | Item Weight | 1.09 kg | | Leg Style | Straight Leg | | Manufacturer | Mastery Mart Inc. | | Manufacturer Part Number | MM-REP-GL03 | | Material Type | Alloy Steel | | Maximum Weight Recommendation | 1000 Pounds | | Model Number | GAS-LIFT-GL | | Pattern | Solid | | Reclining Position Count | 1 | | Room Type | Office | | Size | 4.8'' Travel Length | | Style Name | Modern | | Unit Count | 1.0 count | ## Product Details - **Brand:** MASTERY MART - **Colour:** Polished Steel - **Material:** Alloy Steel - **Product dimensions:** 5D x 5W x 28H centimetres - **Size:** 4.8'' Travel Length ## Images ![MASTERY MART Office Chair Gas Lift Cylinder Replacement, Heavy Duty 450 LBs/204 KGs, Universal Size Fits Most Office Chair and Swivel Chair, 4.8'' Length Extension,Highest End Class 4 (Polished Steel) - Image 1](https://m.media-amazon.com/images/I/51GVMR+scIL.jpg) ![MASTERY MART Office Chair Gas Lift Cylinder Replacement, Heavy Duty 450 LBs/204 KGs, Universal Size Fits Most Office Chair and Swivel Chair, 4.8'' Length Extension,Highest End Class 4 (Polished Steel) - Image 2](https://m.media-amazon.com/images/I/71JRlnJCtdL.jpg) ![MASTERY MART Office Chair Gas Lift Cylinder Replacement, Heavy Duty 450 LBs/204 KGs, Universal Size Fits Most Office Chair and Swivel Chair, 4.8'' Length Extension,Highest End Class 4 (Polished Steel) - Image 3](https://m.media-amazon.com/images/I/71zzVfnGAJL.jpg) ![MASTERY MART Office Chair Gas Lift Cylinder Replacement, Heavy Duty 450 LBs/204 KGs, Universal Size Fits Most Office Chair and Swivel Chair, 4.8'' Length Extension,Highest End Class 4 (Polished Steel) - Image 4](https://m.media-amazon.com/images/I/81A3Lm2sszL.jpg) ![MASTERY MART Office Chair Gas Lift Cylinder Replacement, Heavy Duty 450 LBs/204 KGs, Universal Size Fits Most Office Chair and Swivel Chair, 4.8'' Length Extension,Highest End Class 4 (Polished Steel) - Image 5](https://m.media-amazon.com/images/I/71JGv5HXheL.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 C***G on 31 March 2023* I couldn't fix my chair like most of the videos showed. However, there was one video that showed how you could take the inner tube out and replace just that part. That worked fine. So if you are struggling taking the larger entire piece of the chair base out.. look for the video where you can just take the inner hydraulic one out and just replace that part. ### ⭐⭐⭐⭐⭐ Review *by C***G on 2 July 2023* Got the chair perfect Only problem is getting the old one out of the chair… a pipe wrench is only way to remove the old one…..watch the You Tube videos ### ⭐⭐⭐⭐⭐ Review *by M***K on 1 June 2023* Worked as described. I would say it works better than the original the chair came with. --- ## 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/501913622-mastery-mart-office-chair-gas-lift-cylinder-replacement-heavy-duty](https://www.desertcart.vu/products/501913622-mastery-mart-office-chair-gas-lift-cylinder-replacement-heavy-duty) --- *Product available on Desertcart Vanuatu* *Store origin: VU* *Last updated: 2026-05-10*