Aluminum body with epoxy finish, heating device easily substituted (non-disposable device) in fiberglass and nikel-chromium heating resistor; to be used with spherical bottom flasks and has maximum temperature of 300ºC. Includes electronic power controller which acts by impulse with adjustable timing through a pilot lamp. Reinforced thermal isolation allowing maximum yield, safety and power saving Uniform heat distribution due to product quality, expressed in heat yield and perfect flask running * We have available sizes of 125ML,250ML,500ML,1000ML,2000ML. * We take our reputation seriously. If you have any questions or concerns, please contact us and we will respond back to your message within 24 hours.