The 9mm screw top vials with cap and septa is compatible with autosamplers using 11mm crimp top vials, â?¢Can be used in general autosamplers, Suitable for use in Agilent, Shimadzu or Waters Systems,Wide mouth,Borosilicate glass,Flat bottom,With marking spot,Cap with teflon/silicon/teflon septa,Cap to be packed separately from vials