The Series C is the perfect syringe for everyday use, with all the standard Pressure-Lok features such as a PTFE plunger tip, PTFE-sealed needle, and ultrasmooth bore, but without a valve for pressurized sample storage. Sample storage capability can be added with a Mininert syringe valve.
The optional Chaney adapter (in the left portion of the photo) offers much lower dead volume than luer-style connectors.