Snug Fit; Easy Removal; Will Not Freeze or Bind

Use with flasks, separatory funnels and mixing cylinders that require flask-length stoppers. Chemically inert. Unbreakable. Hollow stopper reduces expansion and contraction when exposed to heat or cold, making it superior to solid stoppers. Weight of top keeps hollow tip up, preventing contamination of wetted surface when placed on a lab bench. Inverted stopper has a hollow cup that can be used as a mini-beaker for micro-analytical work when inverted.

Stoppers, Type "F" (Flask)

Features/Benefits:
• PTFE Non-Binding Flask Type
• Will not freeze or bind, chemically or mechanically
• Needs no lubrication
• Snug fit, easy removal
• Hollow tip makes cup ideal for micro-analysis

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