Ace Glass 9640-12 Instatherm Flask 12L 6" (150mm) Duran Flange Stirmantle Fit with Capfe O-Rring and Controller Extension Cord 40V Max

Short path, two-piece Instatherm® round bottom flask and head designed for use with a Glas-Col Stirmantle. Primary heating is accomplished via the Stirmantle while the Instatherm® fused-to-glass heater provides additional heating above the Stirmantle, thus reducing premature condensation of the vapor. Low voltage requirements to be met by 12323 dual variable voltage output controller.