[R.C.]

Go to McMaster and search "air cylinders"

You can select all your options.

One is spring return. You only need to put air in one direction. We have tried these in the past, the issue is that when shifting back in with the spring, the two sides don't spring right. And most of the time you don't have enough "spring" to shift under load.

For what its worth and how much air your consuming, your better off with the normal cylinder.

-RC