24V 25W UM2 4mm cartridge heater

Cartrige heater diameter 4mm

Ultimaker 2 adopts a cartridge heater which is diameter 4mm and 16mm length
24V 25W cartridge heater compatible for Ultimaker 2 or Ultimaker 2 Extended
4mm+-0.05 16mm long head
1 meter long thermostability silicone nylon reinforced lead wires
24V 40W is now available from RobotDigg