Cartridge heater 20x90mm,400v,600w with SS flange 1 year quality guarantee Cartridge heater20x90mm,400v,600wwith SS flange1 year quality guaranteeCartridge heater is developed for high temperature application. Helical round resistance coil is placed around the solid MGO tube filled with high temperature MGO powder and compacted for faster and efficient heat transfer.Cartridge heater features: ...