Screw top vials are in compliance with the GCA, DIN, GPI, ISO screw type. Products volume range: customized size in 1-200ml glass tubing vial. Item Number. Clear Tubing Screw Vial. Ideal For. D12H32-1. 2 ml clear screw vial, 12*32mm, 8-425, 9-425, 11-425. auto sampler laboratory chromatography vials, HPLC, GC analysis, USP I glass, suitable