Ace Glass 9655-39 Instatherm Reaction Head, 45/50

Features:

• Head,Instatherm,reaction,4in Duran flange,45/50 center neck,three 24/40 side necks,40v/5amp max
• Rugged cylindrical reaction flask and head with Duran, flat, ground 4" flange with O-Ring groove and integral heating element that eliminates the local superheating commonly associated with more conventional heating methods and eliminates cumbersome and dangerous oil baths
• Response is rapid and accurate. Supplied with silicone insulating and protective coating
• CAPFE o-ring included with flask. Heads and 1 liter size are low voltage,requiring a variable voltage output control while the 2000mL size requires 120v control