Solid Rubber Stopper is #7 size and made of rubber to seal graduated cylinders when conducting Sand Equivalent Tests, or for sealing other laboratory containers with a 1.25in (31.8mm) inside diameter. Sold individually and is also an included item in the SEA-99 and SEA-100 Sand Equivalent Test Sets.
Features:
- Made of chemical-resistant rubber
- Plugs graduated cylinder openings during agitation
Included Items:
- Solid Stopper
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