This electrode holder holds custom electrode substrates and is compatible with our low volume cap kit.  A Copper Electrode Holder Clip is used to connect the electrode to the holder (included).  An O-ring is optional for positioning in a 7 mm OD hole (this O-ring is included with the low volume cap kit).

• Made of stainless steel
• 7 mm OD
• 76 mm (3") long
• Accepts standard 4 mm banana post on top end