#1 Office Chair Gas Lift Cylinder Replacement - Includes Cylinder Removal Tool, Installation Instructions, & Gloves - Heavy Duty Pneumatic Piston & Universal Standard Size

So, I was initially very disappointed as, when it was delivered i thought it was just the cylinder, and was about to start a returns process when i realised everything i needed was shipped inside the single box. The removal kit was a god send. I had struggled for hours before giving up previously, this time the whole thing was off in minutes. Keeping the removal kit in a safe place for future fixes, fields and family.

I waited a while after submitting my review as I wanted to make sure the gas lift worked ok. having the tool to remove the existing cylinder made replacement much easier, and you can use the tool again if the cylinder ever fails. A good purchase, no regrets.

Good quality product, excellent Customer support, but unfortunately the warranty does not apply to UK customers. Only a small business based in the USA, at least that is what they told me and I wish them every success.

I knew that replacing a gas lift in an office chair was not going to be an easy task. The removal kit I purchased with the replacement gaslift made the removal of the seat from the lift possible. The removal of the old lift from the base was also difficult and I had to convince myself that attacking the old lift with a heavy hammer and chisel would be OK as it was the only way to remove it - and it was - eventually! Installation of the new gaslift was very straightforward having removed the old one and the chair is as good as new again. Thank you.

I tell you what, this really works. While there are similar for half the price in the UK, I ordered this as they were all out of stock. The reviews for this were solid, however I was dreading removal of the old gas strut as it had had a 103Kg bloke sat on it every day for the last six years! Anyway, my fears were confirmed as it was clear when using the removal tool, the old strut was stuck fast. However, I persevered and after about 30 mins and repositioning the the tool on the shaft a coupe of times, bingo! Off popped the old one. Installation of the new strut takes seconds and an expensive office chair is now as good as new! No hesitation in recommending this, however it will be interesting to see how long the new strut actually lasts.

Ok this came from America so not next day delivery. Instructions were easy, glad they supplied gloves because it was a little bit oily. Very simple to use and all done in about 10 minutes. This saved me replacing the whole chair.

Bought to replace an old sinking cylinder in a Herman Miller Aeron, provided tool and instructions make removing the old cylinder very easy and the new cylinder fits perfectly and has zero wobble or sinking so far!

Excellent product! Worked perfectly for my Osim uterine chair. Easy to follow instructions and great product!

The cylinder is broken. Goes down once seated and up an hour after getting off.

First and foremost, item gets 5 stars for customer service alone... Turned out it wasn't a *perfect* fit for my chair — which is my chair's fault, not this cylinder's — but the return/refund process was absolutely hassle-free! Okay, on to the product itself. Now, I don't own a Herman Miller chair. If I did, this might've worked perfectly for me. If I owned a chair that was a little bit fancier that what I bought, or maybe if my chair base was a little more universal, it might've worked perfectly for me. None of that is the cylinder's fault, and I *won't* fault it for that. This review's going to talk about the process I went through from start to finish and let you know why you should still buy this even though it didn't work perfectly for me. Now, TL;DR: The cylinder's great, quality wise, install was *relatively* smooth and easy — though I'm not in the best of shapes — and the final verdict is that it made my chair too tall to be comfortable for me. I had to return it, and the company stood behind their product and their return guarantee 100%. I loved dealing with them and I'm saddened I had to return it... Okay, SO, it turned out my chair's cylinder was going bad — I've owned it for just under three years, but since I'm a Clydesdale of a guy, that probably had something to do with the poor cylinder giving up the ghost early-ish — and I needed a replacement cylinder so I wouldn't have to buy a whole new chair. What do you do? Head to Amazon, pick out the one with the most and best reviews, right? They all kinda look the same anyway. Only, this one *definitely* came with a removal tool, as mentioned in other reviews. (That some *don't* come with the tool, that is.) The removal tool is relatively simple and definitely easy to use: a couple screws slowly but surely un-wedge your cylinder from the seat assembly. I didn't plan as far ahead as I should have so I sweat through the process and space was a little tight to put the allen key in at first, but it worked! Eventually... I ended up bottoming out the screws maybe three times altogether? After the first time, I got a little scared, but I figured I'd just keep going and see if it'd work on the next try. The alternative was sitting on the floor (nuh uh) or waiting a couple more days to be able to sit at my desk (also nope). I might not have bottomed it out on the third attempt, might've only taken two and a half uses altogether, but I basically had to unscrew the screws, move the tool back up, tighten it back down, and start again. When my chair finally popped off, I was so happy and definitely relieved that I trusted the process and just kept going! I'd read a review about it not working for one person, so I can't say it'll work in 100% of cases, but it definitely worked for me. Now, getting my old cylinder out of the chair base was a HASSLE... I tried WD-40, I tried a rubber mallet, then a real hammer with a piece of 2x4 so I wasn't hitting metal on metal... Eventually, I had to pry off the old clip on the underside to get the pneumatic whatchamacallit out of the old metal cylinder and THEN it came off with a couple hammer-smashes. After that, easy-peasy putting the new one into the base and the seat onto the top. Only, it turned out that because my old cylinder was kinda wonky shaped — narrower at the bit that went into the base (about 1 5/8" instead of 2") — the new cylinder couldn't sink as low as the old one (I think?) and my chair at the new one's lowest setting is higher than my old one's highest setting! Forget lifting the chair if I didn't want to feel like I was sitting on stilts and needed a stool to get on and off... So, product worked great, process worked great, it was just the final result that didn't really come out great... My feet can't touch the floor and even when resting on my footrest, it's uncomfortable cause it's so tall. What to do but get in touch with the company and find out where to go from here, right? The packaging mentioned getting in touch via text (wow!) only, the number is in the US and I'm in Canada, and I didn't want to run the risk of long-distance text charges. (Those exist, right?) So I sent them an email. Explained what happened, included a PDF copy of my Amazon invoice and asked for help. I e-mail them at 1:43 am. ALMOST TWO IN THE MORNING! (I keep odd hours these days...) I just so happened to get a reply 30 minutes later!!! Someone over there answered my email at 2:11 AM! Holy cow! Stef at The Office Oasis was so kind, and so professional, it honestly blew my socks off. No muss, no fuss, I had a refund pending the next day! Talk about standing behind your product and your guarantee! That's 5-star service for a customer who isn't really a customer anymore since they (unfortunately) had to ask you for a refund... I *WISH* I could do business with The Office Oasis again... I wish they had any other model of cylinder — like a shorter one — just so I could give them my money. Holy cow. Great team, and I sincerely mean that. Yes, this cylinder's more expensive than some of the ones you might see listed when searching. That's a guarantee you get, though: phenomenal customer service, a warranty, and hassle-free returns should something go wrong. 10/5 stars, the experience left me smiling at the end. Highly recommend.

Given that this replacing a generic part, I didn’t have great expectations. Boy was I wrong. The first clue was the instructions, large, clearly written, comprehensive. The (essential) accessories where solid and well engineered and the gas strut fits and works perfectly. I’m quite sad that I only get to use this once. I HATE buying new chairs, and now my favorite chair has a new lease of life. Worth every single dirham. Hope my other chair fails soon!

This removal tool has been an incredible asset when dealing with stubborn and stuck hydraulic lift. The tool's sturdy construction and precise functionality make it highly effective, effortlessly loosening objects that would otherwise require a lot of force or frustration. I've tried multiple methods to no avail. If you are encountering a stuck hydraulic lift, this tool is a must-have! It saved me time and hassle. It’s a small investment for a big return in convenience and peace of mind. Must Buy!