Крышки, 18 мм, закрыт верх, металл, голуб PTFE/бел силикон, 1,5 мм, 100/pk, C0000474 ALWSCI
Производитель: ALWSCI
15-415 White Closed Top PP Cap for Test Tube with 15mm Natural PTFE/White Silicone Septa 1.5mm Thick
Крышки 20 mm Alum Crimp Cap (10mm hole) 20mm PTFE/White Sil Septa 3mm, 100pcs/pk, C0000196 ALWSCI
Крышки 20mm Open Top Bi-Metallic Crimp Cap (8mm hole) Red & Silver with 20mm Natural PTFE/Natural Silicone Septa 3mm Thick. 100pcs/pk, ALWSCI