Big and Tall Gas Cylinder for Your Office Chair


Universal Big and Tall Gas Lift Cylinder Pneumatic Shock for Your Office Chair

Are you a tall person and your chair is too low for your desk?  Our universal big & tall chair lift is your solution!  If you need to sit higher in your chair, our taller chair shock will work.  Our big & tall gas shock fully extends to 22 1/4".  The black column measures 12.4" long, which can be removed if you don't need it.  It is 2" in diameter with a 1" inner shaft.  Also available in heavy duty version for heavier folks.


If you bought your office chair at a superstore like Staples, OfficeMax, Costco, Walmart, etc., this gas lift will most likely work.  Refund offered if it does not fit your chair (minus cost of shipping).  If you are still undertain if this pneumatic will work for you, tilt your chair on its side, take a pic of your existing cylinder, and email it to us so we can check.

  • Adds additional 2-6" in height
  • For taller people who need to sit higher 
  • Not meant for stool height
  • Also available in a heavy duty version

Click here for specs on our heavy duty, big and tall pneumatic.

If you need a taller cylinder for a stool, please email us for a quote by clicking here.

Please email us for Volume Discounts.


Works as a replacement gas lift on most models of the following brands:  Global, Lane, Serta, Humanscale, Novimex, Realspace, Broyhill, Lazyboy Lazy Boy, Sealy, Globe, SC Turnstone, Vogel Peterson, Office Star chair, Suspa, Pottery Barn, Kimball, Chairworks, Workpro office chairs and more!

To remove most gas cylinders you need a rubber mallet with a wood buffer to bang out the 5 star base from the bottom. To remove the shaft from the mechanism under the seat, use a pipe wrench with a "twist and pull" motion. For a stubborn cylinder shaft in the mechanism, you can try applying a little lubricant.