Item #DescriptionCase Pack
 31020SP-234610mL SPME Clear Rounded Bottom Vial, 23x46mm, 20mm Flat Top Crimp, Thicker Lip Finish1000 pieces
 32020SP-237520mL SPME Clear Rounded Bottom Vial, 23x75mm, 20mm Flat Top Crimp, Thicker Lip Finish1000 pieces

The SPME vials with a thicker lip are available in 10mL and 20mL vial capacities. The thicker lip maintains a tighter seal. For SPME applications, a 20mm aluminum seal with a thin septum would be ideal in order to extend the life of the needle.