Filter Vacuum Flask Heavy-Wall Borosilicate 3.3 Glass Family

SKU: FF BG 250ml

Size: 250ml
Quantity: 1
Sale price$17.95 USD
Only 10 units left


TN LAB Filter Vacuum Flasks

Heavy-Wall Borosilicate 3.3 Glass

9 Sizes

 125ml - 250ml - 500ml - 1L

2L - 2.5L - 3L - 5L - 10L

  • Filter Flasks, filtering flasks, vacuum flasks, or Büchner flasks are all common names for this filter flask.
  • Our Filter Flasks have much heavier walls than a standard conical flasks to endure effects of vacuum filtration
  • Sidearm extends 1 1/2" with an outside diameter of 1/2" or 3/4" depending on the size, using a barb style connection providing hose flexibility connecting to vacuum source
  • During filtration, the filtrate enters and is held in the flask while the sample or residue remains on the filter paper in the funnel.
  • Filter Flasks can also be used as a vacuum trap in a vacuum line.
  • Filter Flasks are hand produced therefore variations are inherent
  • Highly leach resistant to most chemicals
  • Manufactured to ISO: 9001 

Heavy Wall Borosilicate 3.3 Glass

Graduated Filter Flask Applications

  • Vacuum filtration uses Buchner or other funnels
  • Vacuum aided evaporation or separation 
  • Heating of solid and liquid chemicals
  • Evaporation of water or solvents
  • Mixing and dissolution of chemicals into liquid
  • Chemical reactions of organics and/or inorganics
  • Collection of samples analysis or other treatment


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