Originally posted by gofstbuick
The steel tubes are discontinued. Check with Bweavy, he may have a used one. Otherwise, you can do the following if you have a used damaged unit: save the tube nut and have a hose and fitting company create two separate tubes, make sure they flare the ends a little, then trial fit the tubes and mark the position of the TB heater tubes on your new assembly, and take the unit to a air conditioning repair place and heve the smaller tubes soldered in. Finally, take the completed assembly to a plating shop and have it plated with white cadmium (and then paint black) or black cadmium (military grade) and then install. Even if you can get a used unit, I would do the cadmium plate procedure, so it won't corrode again. This tube is also a source of air pockets in your cooling system, so I would insure that all the air is purged from your cooling system.