Aijiren Vial, crimp top, headspace, clear, round bottom, certified, 20 mL, 23 x 75 mm, 100/pk. Vial size: 22.75 x 75 mm (20 mm cap) - Headspace Vials & Caps UNSPSC Code - 58 Aijiren Vial,HS,crimp,RB,20ml,clr,cert,100PK - Autosampler Vial Accessories - Ampules, Cuvettes, Tubes, and Vials - Laboratory Supplies