Office Chair Cylinder Replacement - Heavy Duty Class 4 Hydraulic Pneumatic Gas Lift Cylinder(12" to 18" Adjustable, 1000 lbs Capacity) - Universal Fit for Most Executive Office Chairs

So my Real Space DRG gaming chair was sinking. I read the reviews and checked that my chair was compatible with this Cylinder replacement. Google told me that my chair had the most common cylinder with a 2" (50mm) base. I ordered this Huiguli cylinder to replace my old one. Taking the old cylinder off was a little tough, as mentioned in many other reviews. I tried to hammer the swivel base with casters off the chair, but had no room to work and no luck. So, I unscrewed the baseplate from the chair. I turned the base upside down in my workbench and proceeded to knock out the old cylinder with a hammer. I destroyed it, because I had to hit it so hard and directly in the center to dislodge it from the base. But that did the trick. I then used vice grips to grab hold of the old cylinder and turned & "unscrewed" it from the base. The new cylinder was simple to put on. After screwing the baseplate back onto the chair, I then replaced the old plastic cylinder protector onto the new cylinder, then slid the cylinder into the baseplate. I then replaced the old base with the casters. The new base is fantastic. I have no evidence of durability because it is brand new. But, it works great and goes "extremely" high if needed. It is a little higher than the old base at it's bottom position, but that is fine, as the old one was very short at it's bottom position. I am extremely happy with my purchase, that came within 6 hrs of ordering. It sure beats having to buy a new $400+ big and tall chair.

The Huiguli Office Chair Cylinder is better than I expected. I had to replace my home office chair's pneumatic lift cylinder as it would not stay up. The Huiguli replacement I purchased fits perfectly and actually lifts the chair higher than the original cylinder. The Huiguli cylinder was simple to replace, with the hardest part being removing the original cylinder. I recommend the Huiguli replacement cylinder to anyone who needs to replace what they currently have.

Excellent so far! Product seems as described and repaired my chair. Seems structurally better and definitely taller than my old one, also as described. Note: Cylinder arrived with a plastic cover on the top that was somewhat difficult to remove. Once it was removed it fit as expected and the height adjustment button was exposed to change the height of the cylinder.

Used this to replace a failed gas piston in a steel case chair. Work great, seems to be very well built. For the money it revived a chair that was headed to the trash heap for no other reason besides the failed gas strut.

The product fit exactly and expected. Lifter worked as expected. Only gave 4 stars as there were zero installation instructions included not even a simple recommendation guide. Thing to note I purchased this for my Berkley Jensen Executive office chair bought from BJ's. The original part has a taper on the wheelbase end extending about 2 inches below the bottom of wheelbase, the replacement does not but the part seated in the base. Also note using a pipe wench or a tap of a hammer to release the post out of the seat bottom will most likely be needed. I personally only needed a hammer I tapped the base a couple of times the wheels and post released together. I then turned the wheels over on top of a 5 gallon bucket and using the hammer I was able drive the post out of the wheels. Important do not strike the middle of the post bottom, only strike on the edge or use a large headed hammer to cover the whole surface Reversed the process and reassembled the chair.

I very easily installed this Class 4 1000 lb Capacity Cylinder and it was a perfect fit for my Serta Office Chair. The difference is night and day and it functions better than the original ever did while giving me even more height options than I had before as well ! The OLD cylinder was extremely JAMMED on there but a Quick 1/4 turn with a basic locking pliers / vice grips loosened it up enough to take it right off.

Update 9/25/2025: I was contacted by the seller and offered a refund on the product, which I accepted, eliminating the need for me to return this failed unit when the replacement unit from another company arrives. Had there been a direct point of contact for the product on the website (perhaps there was but I was unable to find it), I would have accepted a replacement product and given this company a second try. ----- No instructions or tools needed were provided, so I had to search YouTube for help. The 4 instruction photos in the Amazon product webpage are useless and unhelpful. I needed a BIG pipe wrench to loosen the cylinder from the top of the chair! A mechanic friend had such a tool and with his help, we were therefore able to loosen the old cylinder. Installing the new one was easy. However, the extension pole did not pop-up before I installed the top of the chair on it. I thought that once connected, it would do so but it has not. Chair does go up or down, so I am assuming that the extension tube is jammed and was like this when I took it out of the box. Of course, there isn't any support point to ask for help. I should have realized that I was going to have issues when afterwards, I noticed that there are only TWO reviews from the USA. Don't buy this product!

Definitely is heavy duty. Make sure to measure your old cylinder, we had no idea this was so tall. It raised the massage chair high in the air fully extended. Use a pipe wrench to take out your old cylinder. I'm glad we were able to reuse the chair by replacing the cylinder, unlike at work where they toss chairs just because the cylinder wears out. Price was very reasonable and seems better quality then others I've researched.

Dieses Produkt ist optisch und funktional sehr zufriedenstellend.im eingebauten Zustand überzeugt mich die präzise Arbeitsweise.Einbau war problemlos.Dieses Produkt hat mich überzeugt ich würde es bei dieser Firma wieder kaufen.

A high quality replacement gas lift cylinder for office and gaming chairs. This part allows one to extend the life of an adjustable office chair for years, rather than sending the chair to the landfill. A simple process to remove the failed cylinder from a chair and install the replacement within minutes. This particular part is heavy duty to support higher than standard weight and lifts taller than most standard cylinders and should last for years.

Length is not 17 inch, it is 15 inches

Très facile à changer, permet de changer la hauteur du siège à conseiller,

Ik realiseer mij nu hoe slecht de vorige gasdruk veer functioneerde. Het is een verademing om weer op de juiste hoogte aan een bureau te zitten. Prima kwaliteit, goed verpakt.