Product Name: Flange Disc Heating Tube for Oil Tube Length: 190mm/210mm/250mm/290mm/355mm Voltage: 220V/380V Power: 3KW/4.5KW/6KW/9KW/12KW Tube Diameter: 8mm Thread Diameter: 52mm Flange Disc: 63mm (2inch Tri-clamp) Tube Material: 304 stainless steel Thread Material: 304 stainless steel Package Contents: 1x heater/1x bakelite cap To dear all, 1. Heaters are industrial products, not vase. some may have flaws, such as weld, such as stainless steel trace and polish trace. that's normal. 2. Because the heating wire inside the heater tube is made of OCr25A15 which is Magnetic, it is normal that the element can be adsorbed by magnet. 3. Under the condition of insulation, the international standard for the heater power accept allowance -10% to 5%. If you are care about these, please think twice before make order. Shipping 1.You can ask the seller about the shipments to other countries or higher quantity. 2.We are always working hard to ensure your package arrives as soon as possible. Please understand that some factors like weather, high postal traffic, and the performance of shipping companies are outside of our control. 3.Usually the product Reaches after about 12-45 business days depending on destination.If you have not received your shipment within 45 days from payment, please contact us. We will track the shipment and get back to you as soon as possible with a reply. Refund or resend product will be offered if item still not received. 4.We maintain high standards of excellence and strive for 100% customer satisfaction! Feedback is very important. We ask you contact us immediately BEFORE you give us neutral or negative feedback, so that we can satisfactorily address your concerns.It is impossible to address issues if we do not know about them!