Aijiren Tech™ National™ and Aijiren Tech™ Chromacol™ Sample Storage Screw Thread Vials are manufactured from superior quality 33 expansion borosilicate clear (Type 1, Class A) or 51A amber (Type 1, Class B) glass. Storage vials range from 2mL to 40mL. $38.25 - $295.00 Products 32 Description Description