Join Date: Aug 2003
Location: Long Island, NY
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Re: Universal M-18 Heat Exchanger
It's not obvious, but the zinc gets threaded into the plug. The plug is steel, the same material as the heat exchange. The inside of the plug has female threads and the zinc threads into the plug and then the plug gets threaded into the heat exchanger.
Deep Blue C, 2002 C&C 110
Mt. Sinai, NY
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