This dual compression tool is two tools in one, combining the features of the CTF-200 and the CTF-300. It is designed for use on either short or long F connectors (such as PPC EX6 and PPC EX6XL), and also works on most RG 11 connectors. The Green ring side of the plunger is for the “short” PPC EX6 style connectors and the Blue side of the plunger is for the “long” PPC EX6 XL style connectors.