13.4mm Diameter Aluminum Tube Cap Assembly, Quantity of One

This accessory is required for the Thinwall Polypropylene Ultracentrifuge Tube (part # 326814) and Thinwall Ultra-Clear Ultracentrifuge Tube (part # 344085) Adapter for Tubes in Beckman Coulter Rotors for use in Ultracentrifuge Rotors: Type 70 Ti (part # 337922) Type 50.2 Ti (part # 337901) Type 45 Ti (part # 339160) .