Evacuated Tube Cooker The SunGenius Tube Grill The polished stainless parabolic reflectors does not only protect the tube, but also drastically increases the temperature inside the tube to more than 200°C Tube dimensions: outside 128mm, inside 107mm length 660mm Made of borosilicate glass especially for solar cooking Temperature 200°C plus The food grade silicon seal protects and seals the tube opening The tube can easily be removed for easy cleaning