Multi-Barrel Capillary Glass

Order code

Quality glass, superior prices for microinjection pipettes or microelectrodes

  • All glass capillaries barrels include a filament
  • OD/ID Tolerance: ±0.1 mm
  • Length Tolerance: ±1 mm
  • Recommended to use with Glass Handling Forceps (77020)

Multi-Barrel Borosilicate Glass Tubing with Filaments Options

Order code Length Description OD/ID (mm) Filament Quantity
2B150F-4 4 in. (102mm) 2-Barrel 1.5/0.84 X 100
3B120F-4 4 in. (102mm) 3-Barrel 1.2/0.68 X 100
5B120F-4 4 in. (102mm) 5-Barrel 1.2/0.68 X 65
7B100F-4 4 in. (102mm) 7-Barrel 1.0/0.58 X 60
7B120F-4 4 in. (102mm) 7-Barrel 1.2/0.68 X 75
2B150F-6 6 in. (152mm) 2-Barrel 1.5/0.84 X 100
3B120F-6 6 in. (152mm) 3-Barrel 1.2/0.68 X 100
7B100F-6 6 in. (152mm) 7-Barrel 1.0/0.58 X 60


  • Superior pricing
  • Most glass orders ship within 48 hours


  • Microinjection
  • Electrophysiology
  • Patch clamp
  • Fluid Handling

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.

Multi-Barrel Configurations

Multi-barrel configurations are designed especially for microiontophoresis. Because the capillaries are fused together during manufacture, you will not need to twist them while pulling to seal the tips together. An inner filament in each barrel makes filling easy and fast.

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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