How do I replace the gas cylinder on an executive chair?

Replacing the gas cylinder on an executive chair is a straightforward DIY repair: (1) Remove the chair base by flipping the chair upside down (or tipping it on its side) and using a rubber mallet or hands to pull or tap the base off the cylinder stem. (2) Use a cylinder removal tool (or carefully use a pipe wrench) to pop the old cylinder out of the seat mechanism — it's a friction fit. (3) Insert the new cylinder into the seat mechanism (it presses in by hand), then press the base back onto the bottom of the cylinder. The whole job takes about 15 minutes and requires no special skills. Replacement cylinders for common executive chairs run $15–$50. For FindOfficeFurniture.com product support, call 888-719-4960.