Office Chair Cylinder Replacement (As Seen On PBS) - Heavy Duty Pneumatic Gas Lift Piston for Desk Chairs and Gaming Chairs - Universal Fit

I rarely write reviews because something has to be complete crap or exceptional. This has to be one of the best products I’ve ever bought on Amazon! It does everything they say it will. Everything worked exactly as they described. And so far, it’s better than the original cylinder that came with the chair! Most importantly, it’s my wife’s work chair & she’s thrilled with it. As they say, happy wife, happy life! 😉Now the details…Yes. Removing the old piston is a chore. Not the fault of this product. And this product even includes an ingenious tool for removing the piston from the bottom of the chair. It is slick as <expletive deleted> and worked great! Removing the piston from the chair base is a bit more difficult & there is no tool that they could provide to make it any easier. Again, not the fault of this product or its manufacturer. But they do include excellent & very clear instructions on how to do it. By using the provided instructions, a bit of Blaster PB penetrating oil, letting it sit for a bit & a hard plastic mallet got the job done. I did have to remove the clip & internals of the piston to get it out but it only took 3 or 4 whacks with the mallet.Once the old piston is out, installing the new piston is a piece of cake. It’s literally plug & play, fit perfect and took no more than 2 minutes on a generic Staples brand high back executive type chair.The new piston is quite solid. It has a much heavier feel than the old piston.It also has a longer travel than the old piston so the max height of the chair is noticeably higher than with the the old piston, even when it was new.The old piston always had some give to it, even when new. Not enough to go through the hassle of returning it, but enough to be noticed. This one seems rock solid so far.The action of raising & lowering is very smooth & easy. It raises quickly & lowers smoothly. One thing I noticed & really liked is that as soon as you let go of the lever to lower the chair it stops without delay. Most chairs I’ve used tend to keep going just a little more which can make it difficult to get the exact height I want.That’s about all I have to say for now. If something changes I’ll update. But IMO, this product is worth every penny! As I loved the fact that they included a pair of work gloves! It’s a nice touch!

My chair has been sinking so I finally decided to do something. I didn't want to buy a new one as nothing else is wrong with it. After some research online, I found out one way is to replace the gas cylinder. I viewed several Youtube videos showing people taking it apart with ease: knocking it from the bottom and then twisting it from the top. Little did I know that my chair would require a *LOT* more effort than that.I decided on The Office Oasis' Replacement Gas Cylinder because it also included tools and instructions to help remove the old cylinder that I didn't see in other products. I know I could have saved some money and just buy the replacement gas cylinder only. However I have never done this before so I decided to go with The Office Oasis. I also thought if a company has created a complete solution I would give my business to them.After I made my purchase but before receiving the product, I received an email from the company by the name of Meredith, who I later found out is the owner, with instructions in PDF to get started. I was surprised by her email but was still thankful for receiving the instructions ahead of time. I thanked her and noted that this lets me know that her company is very efficient and dedicated to product quality.After removing my chair's old gas cylinder, which I like to describe later, the new cylinder was installed very easily. I just slide it into the bottom of the seat and also into the wheel base. After so much effort in removing the old cylinder, I forgot to adjust my chair's cylinder adjustment screw and sat on the chair immediately after installing the new cylinder. My chair started sinking again. I realized what I forgot to do.So far the new cylinder works great. I also bought The Office Oasis' clear caster wheels to go with my chair and both the cylinder and the wheels have given my chair new life.Thanks The Office Oasis and Meredith for selling these products. Your company is fantastic.Now I like to describe my journey removing the old cylinder which was spread out over several weeks. I'm not disappointed by it or anything. I didn't mind how long it took as I was determined to see this to the end. My chair is very old such that the cylinder is so deep into the wheel base that it almost touches the floor. Every time I see it I wonder if it was ever like that to begin with.My first problem was removing the bottom cylinder from the wheel base. No matter how hard I hammered away from the bottom, the cylinder just wouldn't budge. I sprayed WD40 at the bottom of the wheel base and waited more than the recommended time before hammering and still couldn't hammer it out. I eventually solved this by first separating the cylinder by removing the metal tab, which I ended up destroying because I didn't know how they work, located at the bottom of the cylinder and then spraying lots of WD40 at the top of the wheel base and letting it sit overnight for a few nights. Then I started hammering from the bottom with a piece of wood between. I wasn't successful on the first try but I reasoned the more I hammer it even if spread out over multiple days it should eventually come out. Also in between my unsuccessful attempts I would apply more WD40 and let sit overnight again. The last knock to get the cylinder out was very satisfying. I noticed the area where the cylinder sat inside the wheel base was full of WD40! Before I did this, I thought I ask my local mechanic for help, even offering to pay for the service, as I don't have a sledge hammer but unfortunately he couldn't help me. He tried to knock it from the other direction but luckily I stopped him and said to hammer from the bottom of the wheel base. He looked at it again and came to the conclusion that something is stuck and didn't want to do it without risking breaking either my wheel base or the cylinder. I tried to explain how those two parts are put together but he had already made up his mind so I figure it was my problem to solve.My second problem was removing the top cylinder from the seat. Actually the provided shaft collars were meant for this but my chair's cylinder simply didn't have room for the collars. Technically my chair's cylinder does have a thin enough shaft cylinder for the collars to hold on to. The problem was there was an external shaft cylinder with a larger diameter that went almost all the way up to the bottom of the seat. It covered a lot of the thin internal shaft cylinder. I tried pulling it down but it was uneventful. I researched online and one good result I found was a Youtube video by Ed Ng that highly recommended taking apart the seat and knocking it out from the top. I wanted to try this but I didn't have the tools to take the seat apart. I decided to contact Meredith for any advice on fitting the shaft collars as I wasn't very knowledgeable in how gas cylinders work and I was surprised to get not only an immediate response but also the responses carried over into the weekend. I'm sorry I didn't get to mention this but I apologize to take up your weekend time. I think Meredith and The Office Oasis are professionals and a quality company! Meredith suggested I use a pipe wrench to hopefully pull the external shaft collar down and if that didn't work to try knocking it out from the top. She also offered to refund me if I'm still having difficulty. I was just amazed at her professionalism. I thanked her for the advice and proceeded to try pulling the shaft with a pipe wrench. I did get a better hold than with gloved hands but it was still uneventful. I finally got the tools to take apart my seat and once I saw the top of the cylinder I proceeded to hammer it down with a long socket in between. Nothing happened as the cylinder was still very stuck. I actually solved this problem first. So to help me hammer it down, I doubled or maybe more than quadrupled down on the instructions' advice of using WD40 to help loosen the friction hold. I poured down a cup of used WD40 into the top of the cylinder. The used WD40 was from spraying the bottom of the wheel base which most of it collected in the crevices. Again I solved this problem first and after waiting a few days, I proceeded to hammer away and the last one was like sweet chin music when HBK knocks down his opponent. So when I knocked out the cylinder from the wheel base, it was HBK all over again!Although I didn't get a chance to use the shaft collars, I like it and am saving it for whatever future use that comes to mind. Thank you Meredith and The Office Oasis for creating complete and quality products and backing it up with professional service. I wish your company continued success.

My favorite herman miller aeron chair has given me over a decade of good service but when the gas cylinder started failing, I searched for replacement cylinders. were many out there, but this package offering caught my attention in that it addressed all the issues involved (all difficulties in this process are associated with getting the old cylinder out). The instructions were spot on, the removal methods foolproof and it certainly was worth the few extra dollars. The customer service they offer is rare these days as is the lifetime product warranty. I will be keeping my eye on OfficeOasis.com to see what Meredith & Kevin come up with in the future and thank you for making this process as painless as possible. Good product, great company.

Ya llevo un par de meses desde que lo puse y uso mi silla por horas casi diario. No he tenido ningún problema de que se baje, aguanta muy bien el peso, fue un poco complicado instalarlo pero más por la cuestión de quitar el que ya tenía mi silla que por instalar el nuevo. Lo único que podrían mejorar es tener algún tipo de cubierta, ya que una vez que lo empiezas a usar y sube el tubo, si lo agarras por alguna razón (mi caso al cambiar las ruedas de la silla) te manchas del aceite que trae, pero nada que un poco de precaución no solucione.

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.

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.

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!

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