30618-470PK 25.08 USD. 30618-470 97047-910 97047-866 89215-698 97047-862 30618-466 97047-892 97047-842 97047-964 97047-940 30618-468. WHEATON® MicroLiter Septa for 20 mm Crimp Seals, DWK Life Sciences. Septa. These septa are used for 20 mm headspace vial crimp seals. New Product.