Crimp Cap to suit vials with 12mm closure. 11mm diameter with pre-inserted butyl / teflon® septum. 100 pack. Please see below for compatible vials. EXP®2 TI-LOK 10-32 Hand-Tight Standard Waters-style Port Capillary Tubing Adapter £ 125.00 EXP®2 TI-LOK 10