Durable conical sleeves made of natural rubber, designed to ensure a tight vacuum seal between filter funnels and suction flasks. This 9-in-1 set offers a range of sizes that can be stacked together for space-saving storage and flexible use. Ideal for general laboratory filtration applications.
Key Features:
Material: Natural rubber
Includes 9 graduated, stackable sizes
Provides airtight connection for vacuum filtration
Reusable and compatible with various funnel and flask sizes
Suitable for routine lab filtration tasks
| Variants | Diameter Upside in mm | Diameter downside in mm | Heights in mm |
| #1(solid) | 17 mm | 9 mm | 14 mm |
| #2 | 23 mm | 15 mm | 15 mm |
| #3 | 30 mm | 20mm | 18 mm |
| #4 | 36 mm | 22 mm | 26 mm |
| #5 | 42 mm | 26 mm | 27 mm |
| #6 | 50 mm | 30 mm | 31 mm |
| #7 | 60 mm | 42 mm | 32 mm |
| #8 | 72 mm | 52 mm | 34 mm |
| #9 | 84 mm | 65 mm | 33 mm |
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