Red Rubber Stoppers: Solid – 19mm Pack of ten
Best quality red rubber. Shore hardness in range 46-55. Bottom diameter molded on top face. Resistant to dilute acids, alkalis and ammonia.
Bottom Diameter: 19mm
Top Diameter: 22.5mm
Length: 28mm
Temperature Range: -30°C – 70°C
Pack of 10
Size 19 stoppers are ideal to use with 24-25mm diameter test tubes.



































