Water hose question ?

[FOSTER]

Is there any good reason to use marine grade water hose to plumb exhaust manifolds instead of automotive heater hose?

[gcarter]

The exhaust hose itself needs to be able to withstand the conditions. However the hoses running water to the manifolds can be automotive hoses.

[FOSTER]

Thanks, that what I thought, wanted to double check before I go to parts store.