12V DC heater is connected to the solar panel/battery/hydro generator 1.25inch BSP copper flange suitable for standard heater/DIY tank Copper surface has electrologist Comes with food-grade O-type silica gel, flexible and waterproof Livestock tank deicer to prevent freezing of cats/dogs/chickens/other domestic animalsColor: Copper Manufacturer: DERNORD Model Number: UK-DER-Q0016 Part Number: UK-DER-Q0016 Size: 12V 200W Style: Indoor InstallationDERNORD 12V 200W Heating Element, energy efficient design that is well suited for many applications. It provides uniform heat distribution and offered long performance life. Technical Details: Material: Copper Voltage: 12V DC Wattage: 300W Flange/Thread type: 1 inch BSP Copper Advantages:1.Using the latest technology and the best quality materials, long service life. 2.BSP is a universal standard in the UK to meet customer needs.Warning:1.Don't run the fuel tank dry when the heating element is turned on, it will burn out!2.Don't use the grid power supply, it will damage the components immediately.3.Please confirm the thread size you need.4.Thread tolerance standard is about 0.5cm.5.Please confirm the length and flange size correct before place your order.