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

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.

Had to go onto You Tube to get instruction on removing chairs old hydraulic cylinder. Be advised if you remove cylinder the way I was forced to the old part will be unusable. The way I look at this conundrum is it’s already broke so it can’t be fixed. Take a regular ol” every day hammer and turn chair on side. Look at bottom of cylinder protruding out of the center of the base with wheels on. Hit the cylinder as hard as you can and drive it out. Chair will now be seat section and wheeled base. Now use the lever that is used to raise and lower sear and get the cylinder to fully extend. If that doesn’t work pull on cylinder and make it extend. Where cylinder enters chair base apply WD40 or a light oil at the area where the shaft enters seat base. GET PIPE WRENCH and grasp the shiny metal shaft. Turn the shaft, it will take a lot of pressure to get it to turn, Persevere! It will eventually Start to turn, add more oil if need be. Once loosened it will be easier to turn, just keep turning it till it comes out. Then install large black end into middle of chair base. Lift seat section up and slide shaft into bottom of seat assembly. Remember to slide the black plastic cylinders onto shaft before placing shaft in chair base. Now you have new office desk chair. Good luck I love this fix, as where can you get a desk chair for less than $25.

Pretty much as the title says: thin rod, too much play side to side. Fitment was fine, appearance great, it has a rather tall throw, which is OK for me (6'2" tall), but less so for my wife (5' tall, her feet don't rest on the ground, when the piston is fully compressed). I'm heavy, about 270 lbs, but no, I don't weight anywhere near the maximum rating of 1000 pounds (where did they get that figure from?!). The chair is a good, solid, 25 year old office chair, which though it squeaked, was still rock solid. The left to right, and back to front “rocking” play in this new piston is unnerving. I'm not trashing the product, I'll give it 3 stars, and of course I can't speak to the durability or reliability, only time will tell. Perhaps for a lighter person, this would be an excellent replacement chair piston. But again, they advertised “1000 pounds”; what did that mean? Disappointed. I need a second piston for another chair, and so this product was an audition for the next purchase. Now, I'll have to look elsewhere.

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.

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.

Je l'ai commandé, par ce qu'il avait les dimensions que j'ai mesurés sur l'ancien. Mais finalement j'aurais été mieux de commander un plus long. Mis a jour de l'évaluation: Après seulement 3 mois, le vérin ne garde plus ça position.