‒ Assembled kits include 100 vials with pre-attached caps and septa Description Glass Patched Cap Colour Septum Pk Cat . No. Screw-Thread Vial and Closure Convenience Kits Unassembled Kit Clear No Blue Beige PTFE/Red Rubber 1000 548-1421 Clear No Black RedRubber/PTFE beige 1000 548-1422 Clear No Black Red PTFE/White Silicone/Red PTFE 1000 548