JG Finneran 20 mL Amber Headspace Vials, 23 x 75 mm (for CTC PAL, Perkin Elmer), Beveled Bottom, 20 mm Beveled Edge Crimp - 100 ea. Specifications. 4071507: 32020A-2375A: $57.65 $419.10: PK CS(10) 844-23695-PK: JG Finneran 20 mL Clear Headspace Vials, 23 x 75 mm (for CTC PAL, PE), Beveled Bottom, 20 mm Flat Top Crimp, Long Neck - 100 ea