Autosampler Vials, Caps, and Closures. Fisherbrand™ 9mm Short Thread Glass Vial, Wide Opening, Clear. Universally compatible on almost all autosamplers. Pricing and Availability. Fisherbrand™ 9mm PP Short Thread Seal, Blue, Center Hole, Assembled Septum. Polypropylene caps are chemically inert and suitable for most chromatography applications.