These heavy wall vials have an internal conical bottom and an outside flat ground bottom. The 3-8mL vials have approximate graduations with subdivisions of 1 mL. Includes 20-400 open top nylon screw cap, size 014 Viton® O-ring and 20mm PTFE-faced silicone septum.
Aldrich is a registered trademark of Sigma-Aldrich Co. LLC
Viton is a registered trademark of E. I. du Pont de Nemours and Company