Office Chair Cylinder Replacement,Heavy-Duty Gas Lift Cylinder Fits Most Chairs,Highest End Class 4 Hydraulic Pneumatic Piston, Universal Size

This replacement cylinder is a beast—strong, sturdy, and a great value for the price. It was easy to install and instantly made my chair feel more solid and secure. The product claims to hold up to 1000 pounds, and it really does feel that strong. No wobble, no slow sinking over time like my old one. My wife comes into my office and i'm not worried to have her hop onto my lap. That said, I made the mistake of not measuring beforehand. I was using this on a Lazyboy executive chair, and the new lift was taller than expected. Now my knees bump into the underside of the desk, which was on me for not double-checking specs. I’ve since ordered a shorter one, but I’m saving this for another chair because the quality is excellent. If you need a tall, heavy-duty gas lift and have the space for it, this is a solid choice. Just be sure to measure your setup first!

Worked well without any crazy tools, basically I was able to use a metal hammer to remove both pieces of the piston before reinstalling the new one. The first thing you do is go ahead and lay the chair down to have access to the underside of the feet, then with your hammer you would need to take a series of firm hits to the bottom of the broken cylinder that will eventually free it from the base. Once you remove the cylinder from the base there's a chance that the actual piston that's connected to the bottom of the chair will still be attached, from there you would hit the piston from the side with a downward force and then the underside with the upward force and that will loosen the friction lock and it will pull right out. Once you get that to reinstall the new piston is easy drop the bottom into the wheel section of the chair pull off the access cap for the piston and put your old chair back on the new piston and carefully sit on the chair and you have created the friction lock and it is ready to go. I have the GT racing Ace chair series and this cylinder worked great, it gave me extra height but will adjust to the lowest position if needed and I wouldn't worry about colors because if you reuse the cylinder cover then you won't see if you purchased a silver or black piston so save yourself a couple bucks.

Another product I wish I had known about 15 years (and 2+ chairs ago). Thanks to Gemini (AI) for helping me figure out what this part was called, so I could find it on Amazon. Most new chair cylinders give out after 5 for me. I bought this heavy duty one and it fit (easy assemble) and worked flawlessly. Will rereview if it doesn't hold. I'm also glad it saved me from throwing an otherwise good Staples chair in the landfill. Felt like a double win.

Sturdiness: 9/10 (No issues for multiple years, slight wobble after about 2 years however ima bigger guy so expected) Adjustments: 10/10 ( Holds up over time, no sag or deflation) Great replacement for any chair that comes with a cheap cylinder.

Excellent cylinder. Very Haevy duty! Fit on Serta office chair.

Good purchase. Perfect size for short desks. Easy to install, quality seems good.

This is a PERFECT replacement cartridge for my office chair. I thought I would have to buy a whole new chair, but with this cartridge, it's like new! Super easy to replace and it lifts even higher than my old cartridge. I would have no problem buying this again if needed.

Dec 2023 bought this chair lift piston. Worked great....until Aug 2025....now loses pressure......sigh....have to get another one. Probably try a different maker.

Sin duda es el mejor cilindro de gas que he comprado, tenia uno que venia con mi silla gamer y que se descompuso (deja de subir el cilindro y se bajaba solo) Y compré este en su lugar. Antes que nada es mucho mas alto que los estándares y el recorrido que hace el cilindro al extenderse te da una altura mayor que a la de cualquier silla. Hasta ahora me ha servido y aguantada. Es muy resistente y si soporta el peso que dice. Por lo menos hasta donde yo se cerca de unos 150 kilogramos. Sin duda lo recomiendo y lo volvería a comprar. Además vienen de regalo unos guantes blancos de trabajo. Qué mas puedes pedir.

Waste product, dont buy it,used only 2 months

Give it ever medal known to man kind for being able to hold up a chair under an obese person. No seriously, DO IT.

Good regular fit

Pathetic product, has not even worked properly for 2 months, and its already gotten lose and descending on its own.