Dual position caps are suitable for use in both aerobic and anaerobic procedures.

• Cap for aerobic and anaerobic procedures
• For use with 12 and 17 mm tubes
• Polystyrene and polypropylene options available

Caps offer two possibilities. The closed but unsealed position where samples are maintained aerobic for microbiological procedures; and the fully sealed position where the cap is pushed tight to seal the tube for anaerobic use or for storage, transfer and centrifuge applications. Not autoclavable.