Borosilicate-glass water-cooled reflux Condenser. This item permits to use Gibitre Block Oven for aging tests using volatile liquids. The supply includes: - Borosilicate-glass water-cooled reflux Condenser - PTFE tube stopper - Aluminium closure ring - Sample fixing tool This item does not include the Glass Tube Borosilicate-glass water-cooled reflux Condenser