Zymo Research C1028-50 2.0ml U-bottom Amber Tube, With Caps, Zymo Research, 50 Pack/Unit - 11-669 | Genesee Scientific Zymo Research C1028-50 2.0ml U-bottom Amber Tube, With Caps, Zymo Research, 50 Pack/Unit - 11-669 | Genesee Scientific