DuramontOffice Chair Cylinder Replacement - Gas Lift, Hydraulic Piston - Universal Fit for All Chairs - Heavy Duty, Adjustable Height - Includes Easy Removal Tool, Installation Instructions & Gloves

I have had the same 24/7 Office chair for a few years. I'm a bigger guy (6'7" 390#) and the chair I have is designed for me. Imagine my horror and sadness when while sitting in my office chair "working" from home when I suddenly realize I'm slowly sinking! I begin to think to myself "This. Is. Not. Good." How can I "work" 16 hours a day with my freshly repaired knees around my ears? How can I possibly navigate Night City, err, my companies intranet from morning to night reaching above my shoulders to type and mouse? Panic creeps in!Wait! I have a warranty on the chair!!! Rejoice. A quick search, navigation, and contact form later, I find out it will be 3 - 6 weeks before they can send a replacement chair (yes, they replace the whole chair for a failed cylinder) Despair ensues.In my sweaty, game, err work, I mean work, withdrawn state, I take to Amazon to see if there is a solution to this calamity. I find many imposter heavy duty gas lift cylinders, many that claim the heavy duty status only to support a paltry 350 pounds. Finally I come across this glorious product. A true Heavy Duty Tall Gas Lift, with the implements to remove and install my wonderous savior. A quick click of the buy button, a bit of marveling at the seemingly high price, a few pain filled days of sitting on a kitchen chair, and my salvation arrives!I ripped into the package and the process of replacing the cylinder, only to be stymied by the harsh realities of a big guy sitting on a chair for 16+ hours a day 6 days a week tends to firmly wedge the cylinder into the base. After struggling, pounding on the old cylinder, cursing life, and much gnashing of teeth, my defeated eyes fell upon one of the cans of compressed air at my desk... Wait, turning the can upside down will produce cold, frosty air. Hmmm, invert can, spray the heck out of the old cylinder, and EUREKA! the old cylinder falls out of the base and nearly crushes my foot! a quick install of the new cylinder and a test sit... Perfection!!! Night City will be mine!!! Umm, I mean, I can continue my high level of professionalism and work. Yeah, that's it. As an added bonus, 2 weeks later my replacement chair arrived, so now I have 2 heavy duty office chairs! Life is back to being OK.

I very seldom rate products, but this time I need to do just that. My favorite chair had a failing lift cylinder, and it was either buy a new one, or find a replacement cylinder and try to figure out how to change it out. I saw Dumont replacement cylinder and decided to try it. The cylinder's instructions were clear and well written, with excellent illustrations. The removal tool is a well designed and a clever low cost modification of a wheel puller. The addition of gloves in the kit was a nice touch. My only suggestion is that the outer diameter of the tool needs to be increased slightly, as the puller screws were rubbing on the cylinder shaft while I was tightening them as there was minimal clearance available. Other than that, the cylinder removal and installation methods were as described (my removal required the overnite application of WD-40 as suggested in the instructions). The cylinder seems very strong and MUCH beefier than the orginal that came with the chair. This is a great choice if you want to keep your favorite chair whos lift cylinder is failing. Well worth the effort and a great value.

Removing the old cylinder was very difficult from my 20+ years old office chair. After several tries with the removal tool on day one, we carefully applied pentrative lubricant and left it overnight. Several more attempts with removal tool failed, then we switched to pipe wrench and channel lock with zero movement. We eventually succeeded by using a small sledge hammer. New cylinder was easy to install but didn't work at first, so we disassembled the seat and found that the the button was too stiff. A gentle tap with the slege softened it enough to depress and engage the cylinder. I'm happy to have repaired my chair and would do it again if needed, but it was definitely not any easy task.

I bought this because I was so annoyed and tired of my chair on max height always thumping down an inch every couple minutes until fully decompressed. A lot more affordable kit that comes with pretty much everything, e.g. cloth gloves, cylinder/cylinder removal tool, Allen key, and easy step by step instructions. Its gonna take some patience to remove the chair mount to cylinder. Make sure to tighten the bottom clamp tool as tight as possible and keep top clamp loose. Be prepared for some sore thumbs/hands. Installation with everything apart is actually quick and easy, but removing old cylinder can vary. All in all, the new cylinder is much smoother going up/turning. Also, it goes a lot higher than stock and I can finally rest my leg on my desk to parallel. I'll keep an update on longevity and reliability.Pro-*Premium quality*Black paint finish*Kit includes everything*Increased height*No more random sinking chairCons-*Can be tedious with cylinder removal tool*Possible sore hands after removal process**Most of it comes down to each chair on how difficult it is to remove old cylinder from its base and chair mount. But, install of new cylinder is ghastly quick.

So I had purchased a desk chair from a name brand store several years ago and well the other day, the hydraulic system went out on it. As I was on a budget, I searched for a chair replacement but then I thought, I can probably fix this. Went out on youtube and found out just how easy it was to do so. I ordered the part system from this vendor and once it arrived, it took about 20 minutes....easy as pie and my old chair was repaired and as good as new. Saving me lots of money! This universal kit worked perfectly considering I had no idea who the manufacturer was for the chair. Everything seems to be designed for disposal by manufacturers but considering how expensive things are these days, people better start looking at ways to save money and hang on to what they have.