20mL Clear Headspace Vial, 23x75mm (for CTC PAL, Perkin Elmer), 20mm Crimp. 32020AM-2375. 20mL Clear Headspace Vial, 23x75mm, 20mm Crimp, with Marking Spot. 31020SP-2346. 10mL SPME Clear Radius Bottom Vial, 23x46mm, 20mm Flat Top Crimp, Thicker Lip Finish. 32020SP-2375. 20mL SPME Clear Radius Bottom Vial, 23x75mm, 20mm Flat Top Crimp, Thicker