8-425,9-425,Screw top vials,sampler vials, screw cap vial,screw vial,Crimp top vials, Snap seal vials,Headspace Vials,EPA VOA Vials FEATURES Be compatible with Aijiren, Shimadzu and Aijiren Technology,Tightest dimensional tolerances in industry,Manufactured in an ISO 9001 certified environment.