clear 18mm 5.0 borosilicate glass gc vials with flat bottom Standard Opening 150ul insert for hplc vials Aijiren China Insert for 2 mL standard opening vial, 4.6 mm I.D. volume 0.15 mL, conical clear glass (with bottom spring), O.D. × H 5 mm × 30 mm, pkg of 100 ea pricing 24708 Quote Now Vial Inserts from Aijiren Inserts