Description
Best quality Red Rubber. Shore hardness in range 46-55. Bottom diameter moulded on top face.
Holes 5mm diameter.
- Bottom diameter: 21mm
- Top diameter: 24.5mm
- Length: 28mm
- Pack of 10
Size 21 stoppers are ideal to use with Pyrex HD NM Conical Flasks 125mL and Simax NM flasks 50-100mL.
Please note: Extreme care must be used when inserting glass into the holes in rubber stoppers.
Specifications
41122502
Own Brand
Lab Equipment
Labware