The only difference in the transom mount XNT 9 DI T and the shoot thru hull XIH 9 DI T is the extra epoxy pack that comes with it...(the DI xducer is the same and it will work as a shoot thru hull...just maybe not as well as transom mount)..

And the temp sensor will not read water temp thru the hull

Also...I don't know for sure but I doubt the transom mount hardware comes with the shoot thru version ...

XNT 9 DI T : : Humminbird

XIH 9 DI T

Rickie