The carbon fiber reinforced probes are designed to be mounted to a Z-drive with two probe clamps and without a guide plate. The carbon fiber probes can also be used with the prior version Z-drives, but the guide plate must be used. Most CETAC autosamplers built since January 2009 are equipped with carbon fiber probes and associated Z-drives. (Septum-piercing autosamplers are an exception.)
All wetted surfaces (liquid contact) of both the carbon fiber and Ultem probes are inert, identical, and made of PTFE.