Material:borosilicate 3.3 glass We specialize in laboratory glassware,main products:beaker,funnel,conical flask,boiling flask,burette,connection tube,test tube,gas washing bottle,separatory Funnel.etc. 1214 Condenser with bulbed inner tubeLength of Jacket (mm)Total Length (mm)Number of bulbsO.D. of Jacket (mm) 300480534400590637500710840