Tube Kiti. ISO meets 10239 requirements. CE approved. 30 mbar derdantor consists of two hoses of 60 and 85cm and a valve suitable for low pressure. The 60 cm hose is positioned between Ø 8mm copper pipes that should be laid on the boat with derdantor. The other end of the copper pipe is attached to the valve, the valve or a hose of 85 cm tall will go to the furnace.