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
