If the end of your fuel syringe or hypodermic needle looks like this, then our Barbed Fitting gives you a great way to attach your tubing to it. This is called a Luer connection and is the standard used in medical devices. It makes no difference what size the syringe is, the connection is the same. The one in the photo is 60 CC.

This red fitting matches perfectly with any of the tubing used in FF. The barb provides a good tight fit.
Regardless of the size of the syringe you use, the Luer connection is the same.