0.5 to 4°C cooling cartridge, blue 3 per pack for CS3

These are replacement Polytetrafluorethylene (PTFE) Product Standard stopcock plug assemblies with 6mm diameter bores for No. 7282 PYREX straight bore PTFE stopcocks. For more information on PTFE stopcocks, please check the Care of Corning PYREX PTFE Stopcocks under Resource Library.