Rubber cone adapter fitted to a vacuum filtration flask, creating a leak resistant seal between funnel stem and side arm flask, LabChoice Australia.
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Rubber Cone Adapter for Vacuum Filtration Flask

  • Forms a tight, reliable seal between a Büchner funnel and vacuum filtration flask
  • Conical rubber design accommodates slight size variations for a secure fit
  • Helps maintain stable vacuum, reducing leaks and improving filtration speed
  • Chemical resistant rubber suitable for routine aqueous solutions and general lab use
  • Supports cleaner filtration by minimising movement between funnel and flask
  • Ideal for Büchner filtration setups in laboratories, schools, and industrial QA/QC

From $7.90 (ex GST)
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Rubber Cone Adapters are essential accessories for creating a secure, leak resistant seal between filtration funnels and vacuum filtration flasks. Manufactured from high quality laboratory grade rubber, these adapters are designed to accommodate slight variations in funnel stem and flask neck diameters, ensuring stable alignment and reliable vacuum performance during filtration procedures. Their tapered cone profile allows easy insertion while maintaining a tight fit under reduced pressure.

The resilient rubber construction provides excellent flexibility and grip, helping to absorb minor mechanical stress and reduce the risk of glassware damage during setup or operation. Smooth internal surfaces support unrestricted liquid flow, while the robust wall thickness maintains shape integrity during prolonged vacuum use. Rubber cone adapters are compatible with common laboratory funnels, including Büchner funnels, and are suitable for routine gravity or vacuum filtration tasks.

Widely used across Australian schools, universities, research laboratories, environmental testing facilities, and industrial quality control labs, rubber cone adapters are a practical and cost effective solution for improving filtration efficiency and laboratory safety. Supplied by LabChoice Australia, these adapters are selected in line with ISO 9001 quality management principles and general laboratory equipment expectations. Regular inspection is recommended to ensure the rubber remains flexible and free from cracks or deformation for continued safe use.