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

Absolutely worth every penny.The entire replacement process was exactly as easy as the video shows it to be.Once I had them snug against the free moving clamp, it took less than 1½ full turns of both bolts for the old cylinder to release from the bottom of the chair.It only took 4 hits with my hammer – one hit each, in 4 different spots – on the old cylinder's base, to knock it loose from the chair's wheel base.I slid the replacement cylinder into the wheel base, placed the chair onto the top of the replacement cylinder, set the reassembled chair on the floor, sat down on the chair, and of course, the chair sank to its lowest height because the release button on the replacement cylinder is taller (and wider) than the old cylinder.So, I simply took my 4 mm hex key, and loosened the bolt attached to the release arm until the bolt no longer touched the release button on the replacement cylinder.Once I'd done that – with the replacement cylinder fully compressed – I retightened the bolt until the replacement cylinder JUST started to decompress.Then, I reloosened the bolt 2 full turns so that the release handle – my chair has a release handle attached to a wire cable Design rather than a release arm Design – engages the release button on the replacement cylinder when the handle is pulled halfway, rather than when the handle is barely pulled – to avoid inadvertently activating the release button on the cylinder.Done.Functions perfectly, and the height stays where I set it, even when I pull the lever that allows my chair to recline.My chair is 25 years old – manufactured 07/2000 – and the replacement cylinder fits the wheel base even better than the OEM cylinder did, as the replacement cylinder doesn't sit almost all the way to the floor like the OEM cylinder does.Instead, the replacement cylinder sits a few inches above the floor. Which means the clip doesn't snag on the carpet fibers – pulling them loose – like the OEM cylinder did.Also, the replacement cylinder offers a greater height range than the OEM cylinder did.Lastly, it is definitely worth the price, as the OEM replacement was, literally, twice the cost, just for the cylinder.

The removal collars alone are worth it. Be sure you wipe down the old cylinder and the collars with alcohol to get rid of all lubricant before you start. Otherwise, it will slide and you'll have to remove and wipe down with alcohol like I did.The cylinder is much better quality than the last cylinder I bought. It does rise a little higher than the stock cylinder, and that's fine with me. All prior cylinders, including the original one, had a wobble in the fit, which caused the seat to rock back and forth sideways, which was unsettling. This cylinder fits squarely with no wobble. So it not only fixed the slowly-falling chair, it also fixed the wobble.On my chair (a Workpro Quantum 9000), there is a lever to actuate the cylinder via a cable, similar to bicycle brake cables. At first, I was unable to get a response when I moved that lever. Fortunately, there are adjusters on the back of that lever, hidden under a rubber cap. The adjusters are like bicycle brake adjusters, with a jam nut. If you know how to adjust bicycle brakes, you will be able to adjust the response of the lever so the chair is smoothly controlled. Once you find the sweet spot, tighten the jam nut and put the rubber cap back on. That's what I did, and the chair has never worked better.If the cylinder starts to fall, I will update this so people will know the expected lifetime. But all indications are that this is a superior solution.I wish I would have bought it sooner.

I enjoy DIY, and am pretty good at fixing things. I thought I would give this product a try, there by saving money and not adding more trash to the landfill. Boy, am I glad I went this route! I love this company. When I had a problem with the chair still not elevating, I reached out to them and they walked me through a fix via text messaging. It was a fantastic example of excellent customer service. The product worked great, the issue was with the gadget that lifts the chair mechanism up and down. So now, I have the gadgets that help remove the gas canister that actually lifts the chair up and down, and I can replace another one as needed and save more money, and more environment. I highly recommend this company. They stand behind their product! Ease of use:I works best if you read the directions.Build quality:Excellent, seems very sturdy and well made.Fit:PerfectValue for money:Considering when I reached out to them and they got back to me in a few hours, I would say yes, a great value. This is an American company, too!