KB004805: What is the Recommended GC Split/Splitless Liner for Checking S/N? - General GC/MS 

The recommended liner part number is 5181-3316 to be used for carrying out the Signal-to-Noise checkout in GCMS systems. It is Splitless; Single tapered, with no glass wool, deactivated liner. Please note that the OQ/PV for GC/MS specifies two liners and other one is split liner which is used for injector precision testing.