Valve, 0-4mm, 1-Arm, Glass Only, Kontes®
Chemglass Valve, 0-4mm, 1-Arm, Glass Only, Kontes®; Valve, 0-8mm, 1-Arm, Glass Only, Kontes® Style - CHMGLS
Chemglass Valve, 0-4mm, 1-Arm, Glass Only, Kontes®; Valve, 0-8mm, 1-Arm, Glass Only, Kontes® Style - CHMGLS