| Laboratory Glasswares > Distillation Heads > Distillation Head Vigreux Vacuum Jacketed | 
              
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              |  Distillation Head Vigreux Vacuum Jacketed | 
              
                | Distillation Head Vigreux Vacuum Jacketed Jacketed fractionation distilling head for use under vacuum the 10/18 top outer joint is for a 1" immersion thermometer wile the 10/30 joints are far a 2" immersion thermometer. The 24/20 and 29/42 sizes use 4mm glass or Telfon stop-cocks, and are positioned to permit changing of receiver without interruption of the distillation process. The 14/20 sizze uses 2 mm bore glass or Telfon stopcocks.
 
                    Telfon Stopcocks :
                      | Cat.No | Join Size | Thermometer Joints | Approx Height x Width mm |  
                      | 1247-08 | 14/20 | 10/18 | 255/310 |  
                      | 1247-09 | 24/20 | 10/30 | 550/325 |  
                      | 1247-10 | 29/42 | 10/30 | 555/325 |  
                    
                      | Cat.No | Joint Size | Thermometer | Approx Height x Width mm |  
                      | 1247 - 11 | 14/20 | 10/18 | 255 x 310 |  
                      | 1247 - 12 | 24/20 | 10/30 | 550 x 325 |  
                      | 1247 - 13 | 29/42 | 10/30 | 555 x 325 |  |