Glass — Clear Each 18-MSC Steel — Silver Pack of 100 18-ST101 PTFE,Silicone Septum for Closure Blue Pack of 125 18-MSC-CBT3 Chlorobutyl,PTFE,Steel — Blue,Gray,Silver Pack of 125 18-MSC-ST101 PTFE,Silicone,Steel — Blue,Silver Pack of 125 C4020-27 Glass — Clear Case of 1000 C4020-38A PTFE,Silicone,Tin Plate —