Different Shape PTFE filter vials manufacturer Aijiren-HPLC Vials Supplier. Mob: 8618057059123. market@aijirenvial.com. Home. Products. 1-4mL Autosampler Vials for HPLC, UPLC, GC 16mm, 25mm Test Tubes for Water Analysis 6-20mL GC Headspace Vials 8-60mL EPA Storage Vials HPLC Syringe Filters.