The double stopper provides a high degree of sealing and is suitable for long-term storage in test tubes. Model number: W-21
Material: Silicone
Quantity: 10 pieces
Size: Width 24mm x middle diameter 19mm x bottom diameter 18mm (total height: 35mm)
Fits: 21mm test tubes
Heat resistance: Approx. 120℃
RoHS2 (EU)2015/863 compliant [About RoHS]
