1950's 220S Ponton Heater feed lines

[cw4dove]

Any one have a source for the steel feed line and return line that supply and return coolant to the two heater cores? If so how much? Mercedes part numbers 10 120 830 01 15 for the feed line and 10 180 830 00 16 for the return line. these run along the firewall between the two heater cores. Are these parts common to other early model Mercedes? Any leads on cost and acquisition will be appreciated, I hear they are out of production and I am thinking of making some.

[cw4dove]

I had the coolant tubes made up out of stainless steel. Work great on my car and have 5 more sets. Will sell. They cost me around 260.00 per set, and I will sell for my cost.