The Original Office Chair Cylinder Removal Tool (As Seen On PBS) - Easily Remove Your Old Gas Lift Piston from Any Office Chair

Dead simple tool, yet incredibly effective. I had a well used large office chair with a cylinder stuck into the bottom pressure sealed under about 400 pounds of force. This thing would not budge under threats of hammers, vices and pipe wrenches. PB blaster and kroil could not touch it, much to my surprise.What did work was this little guy. It took two attempts across ~20 minutes but the device did indeed break the seal and the rod came right out. $20 and 20 minutes saved a ~$600 computer chair and I have no doubts that it'll save many more in the future.

Tried to remove the piston from seat using this tool, but did not work. I had the screws clamped as tight as they would go, but the tool still slid on the piston surface. Perhaps there should be some sort of knurling on the inside of the rings to obtain a better grip on the smooth piston surface.OK my bad. I clamped BOTH rings to the piston so they just pushed against each other. This tool works just fine if you use it right. READ THE INSTRUCTIONS MORON!

Works great, as stated. You can remove the piston with ease using this. However, you can also do it without this tool by placing you foot firmly on chair base, grabbing the armrests, and shaking the chair side to side while pulling upward. Requires quite a bit of effort, but it can be done. This tool makes it easy with no physical exertion. You will still net a hammer or mallet to bang the bottom of the piston out of the base. You can find several YouTube videos on this.

This item worked like a charm. I had to reposition the fixed clamp once because the screws were a smidge short and "bottomed out" before the cylinder came loose. After the reposition and a few more screw turns, the cylinder popped out easily. I'm 65 so having this tool was extremely helpful.One side note: originally I didn't buy the kit, just the cylinder. When I couldn't get the cylinder out using a pipe wrench, I ordered the tool separately. I recommend buying the kit if you don't already have a tool. It would have saved me $10 to order it as a kit versus buying the tool separately.

I was so shocked on how well this device worked. The cylinder popped out in no time after watching the video three or four times I’m so glad there was a video on how to use a device this device really does work 110% dummy tested and approved

Why did they design these so that they're the same thickness as the bottom of gas cylinders? That's zero insight. They should be thicker so that the bolts don't interfere with the gas cylinder. As such, this tool does NOT work well for low-profile gas cylinders. And yes, I have the cylinder in the highest position prior to using this product. Worse, the intended longer bolts will not fit since there is not enough room between the cylinder base and the bottom ring you mount. So I had to use the longer bolts in one of the rings, and then steal the shorter bolts to use for pushing the two rings apart. This means I had to push the rings apart a little, re-seat the lower ring, and repeat about 3-4 times. And the shorter bolts are not tampered as much at their ends like the longer bolts, so applying pressure will deform the last bit of thread, making them more difficult to remove later. I even had to cut off my chair's plastic dust covers just to use the shorter bolts, which means throwing them away afterwards.Finally, using this tool is destructive, as the bolts will scrape away metal from the rings when used (see photos).This "original" office chair cylinder removal tool isn't so great. So many oversights make this tool a poor purchase.

I spent several days trying to remove the hydraulic lift from my chair. Nothing worked until I got this item it WORKS!

it works and it will work to hold a office chair cylinder up also.