Home » News » HPLC Septa Cap » UK autosampler vial septa cap on stock Standard autosampler vial with cap | Sigma-Aldrich Find standard autosampler vial with cap and related products for scientific research at MilliporeSigma Product Number Product Description SDS 27261-U black polypropylene hole cap, thread for 8-425, PTFE/silicone, Top Hat (septa and closure designed to fit