Standard Glass Capillaries, 2mm OD

Order code

Quality glass, superior prices for microinjection/microelectrodes

  • Quality borosilicate glass capillaries
  • Large variety available
  • OD/ID Tolerance: ±0.1 mm
  • Length Tolerance: ±1 mm


Order code Length OD (mm) ID (mm) Filament Fire Polish Qty
1B200F-4  4" (102mm) 2.0 1.12   125
1B200-4 4" (102mm) 2.0 1.12   200
1B200F-6   6" (152mm) 2.0 1.12   125
1B200-6   6" (152mm) 2.0 1.12     125


  • Superior pricing
  • Most glass orders ship within 48 hours


  • Microinjection
  • Electrophysiology
  • Patch clamp
  • Fluid Handling

Fire Polishing

Fire-Polished glass capillaries are easier to insert into microelectrode holders without damaging the gasket. More importantly, fire-polished glass won’t scratch the chloridized wire used in a recording electrode. Fire-polishing does not affect the glass’s mechanical or electrical properties.

Making Uniform, Reproducible Microelectrodes

Borosilicate glass capillaries: Close di­men­sion­al tol­er­anc­es assure mi­cro­elec­trode uni­for­mi­ty and reproducibility. Capillaries are available in 1, 2, 3, 5 and 7-barrel con­fig­u­ra­tions, complete range of single bar­rel thin-wall siz­es and a variety of special con­fig­u­ra­tions. Cap­il­lar­ies with filaments con­tain a solid fil­a­ment fused to the inner wall, which speeds filling of electrodes. Cap­il­lar­ies with or with­out inner filaments are available for making microelectrodes in a wide range of diameters.

Filament Glass Capillaries

Single Barrel standard wall thickness cap­il­lar­ies are offered either with or without in­ner fil­a­ments for quick filling in a variety of lengths and diameters.

Thin Wall Glass Capillaries

Thin Wall single barrel capillaries are of­fered both with or without inner filaments.


NOTE: Because electrode tips erode when left filled with saline solutions for long periods, electrodes should be made and filled immediately prior to use. 

More Information on Glass Capillary

Buying Multi-Barrel Glass Capillaries 
Buying Capillaries for Making Micropipettes and Microelectrodes


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