HelloDoes anyone know where we can buy PTFE ferrules used on the gas lines of our Delta isotope instruments?They are used for connecting 1/8" Swagelock fittings but have a 1/16" ID.I have tried most of the chromatography suppliers but they do not keep this unusual size fitting.RegardsJohnJohn HillMass Spectrometry FacilityUniversity College LondonChemistry Department20 Gordon St.LondonWC1H 0AJTel: 020 7679 4605Fax: 020 7679 7451