5.5 inch Office Chair Gas Lift Cylinder- Replacement Parts,Universal Size Fits Most Chairs,Heavy Duty Gas Lift Hydraulic/Pneumatic Piston (Black)

I don`t know why when you buy a chair, they put in cheap pumps that don`t work for very long usually the weight is about 200 pounds, and our chair lasted about 6 months, So I installed a new pump which is rated for 1000 pounds, I installed it with no problem and it works great, so far no sign of the pump failing great buy.

Fit perfectly and was easy to install (getting the old cylinder out was more of a chore). My old cylinder must not had as much "range" as this one. It gets my chair up to comic heights!

Great product and easy to install. I ordered it due to the sales volume of over 1K sold in past month - so no extensive research. I bought this for a Costco Office chair purchased in 2019. It's about 5/8" longer base than the original and it raises about 1.5" higher than the original. It took about 10 min to put this in.I used a small pipe wrench to release from the base. I then placed the base over a bucket and used a short piece of 2x2 and larger hammer and knocked it out of the base. It all slipped back together as planned.

Why did you pick this product vs others?:My old cylinder had the dreaded slowly sinking issue when I sat on it. I would guess it was 10 years old and the cushions were still in great shape. I paid over $400.00 for the chair so I thought I would rebuild it and use it for my workbench in the basement.Ease of assembly:I saw a lot of YouTube videos that showed that it was tough to get the cylinder off the chair bracket. I used a heat gun at 300 degrees and a pipe wrench to loosen the old one, it made it easy. On the chair base there is a c-clip which I removed that held in the old cylinder and I was able to use a mallet to knock out the old housing. Fit:Perfect fit and I am very happy. I also replaced the wheels with single roller wheels which I also got from Amazon - See my other review. The chair is like brand new for under $50.00I would do this same repair again.Scale =1 Star - I don’t recommend - Returned;2 Stars - Don't Recommend - Kept Product;3 Stars - Recommend - Meets Expectations;4 Stars - Recommend - Exceeds Expectations;5 Stars - Perfect 10 (rare)

Great product. Easy to install and fixed my offic chair

Easy 10 minute job. Check out You tube for installation tips. I used pipe wrench, hammer. and a garbage can. Stick the base upside down in the can and give the lift a whack. Done. My old base was not the exact size as the new so measure first. As a result, I am sitting higher than my old lift. I am going to give it a few days to see if that will be acceptable. As a further review. I discovered that my original unit was a smaller size at the bottom portion and that this unit did not insert fully. I had to return to get the right one.

So far so good! I just got this installed on my office chair. I knew it was going to be a bit taller than my original, but that is okay, I am 6'7" and a chair being a little taller is quite alright with me.However, it ended up being about 5 inches taller once fully extended! When I lean back in my chair MY FEET ACTUALLY DANGLE IN THE AIR!!!! I have not had this happen in quite a long time!1000% would DEFINITELY buy again!

Bought the bigger cylinder so at its lowest point is the desired chair height and therefore acts as a solid mount. (Because I don’t need to raise the chair).