Ten flange for the boiler Thermex 2000W (copper) flange 63mm, 2 tubes for the sensor (for the M4 anode) Parameters: Type of attachment: on the flange Availability of the anode socket: Yes Thread for the anode: M4 Availability of the tube for the sensor: yes Number of tubes: 2 Ten with thermostat: no Power, W: 2000 Material: Copper Heater type: open ("wet") Flange diameter, mm: 63 Heating element shape: Straight