Onan Heat Exchanger 130-6733
Suits Onan models MDKBT, MDKBU, MDKDS, MDKDT, MDKDU
Water pressure sensor can be fitted at 1" outlet (on left can't be seen below)
Material: Copper Nickel
This is a Mr Cool (USA) marine part 130-6733-02CN.
SKU - MRC130-6733CN