Check the listing for details. Solar Water Heater Stainless Steel Tubular DC12v/24v/48v Durable Heating Element. Condition: New. Listed at 28.07 USD. Solar Water Heater Stainless Steel Tubular DC12v/24v/48v Durable Heating ElementItem DescriptionSpecifications: Product Name: DC Heating Element Tube Length: 200mm Tube Diameter: 8mm Thread Size: 1" BSP/NPT Voltage: DC 12V/24V/36V/48V Power: 600W/900W Tube Material: 304 stainless steel Thread Material: 304 stainless steel Package Contents: According to what you choosed as the picturePay attention: Power Allowance -10%~+5%01/Notices: The heaters for water/liquid,cannot dry burning. 02/SUS304 Stainless steel: Has a certain acid and alkali resistance,high density,polishing,no bubbles, no pinholes etc. ,it's the production of all kinds of heater ,bottom cover, high-quality materials and so on. 03/Can you heat the water in the well? There are complex chemical element in well water, can't determine what's going on with the metal tube.We do not recommend using.Note: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%. PaymentPlease ensure the shipping address on your account is correct. If you have any address changes, please inform us on the eBay note. All orders can be canceled until they are shipped. If your order has been paid and you need to change or cancel it, you must contact us within 2 hours. Once the packaging and shipping process has started, it can no longer be canceled. ShippingOnce we have received payment, your items will be dispatched in 1-2 days. Delivery time 7-30 days. There may be some delays due to flight, holiday, weather, local post, local natural disaster impact. If your shipment delays or you have not received your order within 30 days from payment, please contact us. We will track the shipment and get back to you as soon as possible with a reply.ReturnWe offer a 100% money-back guarantee on products that are defective or damaged during shipping. Just contact us with pictures of the damaged items. We will refund the full purchase price of your item and we will send a replacement or refund the full purchase price as preferred. We will refund you for items returned within 60 days of you receiving them, for any reason. To be eligible for a refund, your item must be unused and in the same condition that you received it. Customers will be responsible for paying shipping costs for returning items. It must also be in the original packaging. Before returning items, please contact us. To be eligible for a refund please contact us within 7 days of you receiving the item.