Wheaton® 223683 Clear Glass Serum Vial with 13mm Crimp Top Finish, 2mL (Case of 144) Wheaton vials are ideal for lyophilization and freeze-drying applications. Capacity: 2mL. O.D. x Height: 15 x 32mm. Crimp Top Finish: 13mm. Tubular design provides excellent clarity and dimensional consistency room vial to vial.