Headspace Screw-Thread Vials, 18 mm Headspace Screw-Thread Vials, 18 mm Select Catalog # below Chromatograms Additional Product Details Product Options Not sure which Restek product is the best for your analysis? Consult a Technical Specialist Chromatograms Furan and Alkylfurans Standards and Internal Standards in Solvent on Rxi-624Sil MS