The specification can change with your requirement. Quality guarantee, welcome to inquiry! We can make water /electrical heating element, heater , air heater , Using different material: Red copper,Stainless steel 304,301,316,321. 2.About theshower parts heating element: It has nickle plated and has beautiful shape. We have designer for you. It is widely used to heat water appliance NameModelMaterialPower VoltageDiameterApplicationShower parts heating elementST-005 Red copper5000W208V 8mm heater part 3.About the factory: It has 11 years to produce this kind of immersion shower parts heating element. It will give you the best service after sales. It will continue to develop market from working hard. 4.If you want to know more about shower part heating element, please connect with me freely. 5.Thermostat switch is seperated with the heating applianceto sell. Think safety: All heating elements inherently pose burn, fire and electrical shock hazards. These can cause injury to personnel, or the equipments. The uses is responsible for determining to use heater suitability. Care should always be exercised in selection,installation and use.