Zymo Research C1006-250-G Zymo-Spin IIICG Columns, Capped, 250 Columns/Unit - 11-504GB | Genesee Scientific Zymo Research C1006-250-G Zymo-Spin IIICG Columns, Capped, 250 Columns/Unit - 11-504GB | Genesee Scientific