Ainilaily 14" to 22" Long Adjustable Gas Lift Cylinder Tube for Office Chair Stool Replacement Parts,Heavy Duty Hydraulic Pneumatic Cylinder Shock Piston (8"Stroke)

Loved the 8 inch travel and sturdy, however I need to buy a cylinder removal tool (also puchased on Amazon: https://www.amazon.com/dp/B0CC3TYZDN?psc=1&ref=ppx_yo2ov_dt_b_product_details) to remove the old cylinder. Now my 17 year old stool is like new.Once the old cylinder was removed installing this new cylinder was easy-peasy!

I needed a replacement air lift cylinder for my lab stool. I ordered a cylinder (not this one) then struggled to get the old cylinder out of the chair. I applied penetrating oil and still needed a 3 foot breaker bar on the pipe wrench while standing on a 3 foot breaker bar to hold the chair from moving. The wrench put deep gouges in the old cylinder, but it came loose. The replacement turned out to be too short. It also would not seat completely, and the chair would not adjust height. I was not able to measure the cylinder while it was still in the chair and ordered the wrong cylinder. That is on me. I ordered this cylinder after I was able to measure the original. It fits, and the chair height is adjustable. Don't believe the videos that show how easy the cylinder is to remove. More than once I thought the torque would ruin the chair. This is a good product. It went in easy. I hope I never have to replace another one of these.Update:The chair is now wobbly. The metal in the chair's seat must have deformed when I removed the old cylinder with such force. I need a new chair.

Exactly the height I have been looking for. The installation was easy going on. Removing the OEM cylinder on the other hand. Whew. Great delivery time and no damages!! Worth the money.

I like the long travel range, but they are a bit tall for a regular office chair. The minimum height about matches the maximum height of a standard office chair cylinder. Installation is simple: remove the old cylinder and drop the new one into place. Extracting the old cylinder was a challenge: I had to turn the base on it’s side and push the old cylinder out with tools. It is a friction-only fit— no screws or twisting necessary.

So I was excited thinking I found the answer to my home office chair height issue so I ordered a 2nd one. Well before the 2nd one arrive the 1st one stopped working (less than 30 days). It fully extends when I get up and fully collapse when I sit. So, either it is not as heavy duty as the description says OR its not standard dimensions and going too far into the seat coupling causing the top to remain compressed. Either way I will be returning the 2nd one I ordered as soon as it arrives tomorrow!!!! smh!! DO NOT RECOMMEND!!