I pre-slit chromatography vial septa manufacturer Saudi Arabia-Aijiren HPLC Vials 5.0 borosilicate glass clear 2 mL screw top vials for lab High-quality borosilicate glass vials, open-top caps, .135 High-quality borosilicate glass vials, open-top caps, .135" Teflon/silicone septa, pre-cleaned with Certificate of Analysis Each case contains 4