Sample storage vial kit 20ml clear, solid top PP caps, white PTFE/clear silicone septa, assembled. Kit including 20ml clear Sample Storage Vials (Prod.no. NS-B7920-V0) and white Solid Top PP Caps with 0.01" White PTFE/0.05" Clear Silicone Septa (Prod.no. NS-B7815-24), assembled, pk. 100.