Wide opening vials are easier to fill.
Fit most autosamplers that acommodate the 12x32mm vial format.
Superior quality 33 expansion borosilicate clear glass Type 1, Class A or 51A amber glass.
Uniformly flat bottom for security with inserts.
10-425 thread, wide opening, only compatible with some autosamplers.
It is advisable to confirm your autosampler compatibility with this thread.