MASTERY MART 9 Inches to 13 Inches Office Chair Gas Cylinder, 4" Stroke, Heavy Duty 1000 lbs, Universal Office Chair Replacement Gas Lift Cylinder Pneumatic Shock, Class 4 (Not for 1KEA, Silver)

Bought this to replace the piston in my aging Vertagear gaming chair. Perfect replacement. Gives the same lowest level with an extra 1inch/2.5cm of height. Easy to fit, well packaged and seems to work really well. Only time will tell on its longevity. TOP TIP: Be aware that there are varying low and height differences so be sure to measure your existing pistons lowest, highest, overall length and travel length. It's also a good idea to check the taper at the bottom of your existing pistons as not all pistons are equal in this area. This one sticks through the bottom quite a bit so if your wheel base is low to the ground it will probably hit the floor before the wheels. In that case go for one with less of a taper so not so much of the piston sticks out the bottom of your wheel base.

MASTERY MART 9 Inches to 13 Inches Gas Lift Cylinder for Most Office Chair, Fitted a Corsair T3 rush gaming chair which the cylinder failed. I believe the Corsair chair has had two replacements cylinders with the last one lasting around 6 months before failing spectacularly. This fitted the gaming chair perfectly and is a good replacement. I'm hoping this last far more than 6 months so will update the review if anything happens. Installing the cylinder was easy enough i couldn't salvage the base plate due to the damage so i also had to replace the tilt plate and base with the wheel. Overall This so far is good and fitted perfectly well, good value comparing to the original which in my opinion fails fairly quickly and the person isn't at all heavy.

Perfect fir for my chair and lift works perfectly. Once the old strut was out this was a really simple fit and feels well built. Nice Chrome outside which matches my chair perfectly.

Was a good fit, functionally works, but has an issue of lifting it's self to full height over night from time to time, not that much of a big deal.

Absolutely spot on. Delivery was very quick, it's a well made piece, excellent. Not much more I can say. BUT be prepared to have a nightmare getting your old one out. (obviously this is nothing to do with this, just a foreword to everyone replacing). I have found the best way is once you have the chair off, find a barrel, flip it upside down so the legs rest on the barrel. Then get a hammer and give it all you have. They are 'friction' connections (like a car wheel hub). Try not to lose you rag 👍

Works and fit perfectly

Plug n play also feels exactly like described

Works fine, the height is almost a wee bit too high but it is all good. Super easy to install once the old one is out and there lies the problem. Do not underestimate how difficult it is to take out the old piston. I watched numerous YouTube videos, all claiming to have the secret method, and I tried them without success. The side of the piston where the wheels are mounted - a piece of cake, a stroll through the park, etc. The other side, what a challenge. Finally, a young plumber who was working on our bathroom gave it a try with a massively, long pipe wrench. He just barely got it off and that was with two of us holding onto the chair. At the end of the day, it's cheaper to repair than to buy a new chair. But, the next office chair I buy will be fixed in height with no piston.