Aijiren polypropylene snap ring micro vials can be used with most standard GC and LC autosamplers. These lightweight, economical vials are made from durable polypropylene with good chemical resistance. The tapered interior ensures maximum collection of contents without the hassle of removable inserts. With body size of 12*32mm makes it compatible with most autosamplers such as Agilent, Varian, etc. Snap/crimp top compatible with caps that are used with 11mm snap ring vial and crimp neck vial ND11.