**1000 each/case
Offer two possibilities.
- 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.
- Material: Polyethylene.
- Composition / Ingredient: Polyethylene
- Colour: Natural
- Feature / Property: Dual Position, for 12mm Polystyrene Tube