humminbird transducer question

is there a shoot tru ducer that will work w/917 and 997 i bought a closeout 917 that i'm going to put at the console until i can get 997 and want to get a transducer that will work w/ both to epoxy in hull wanting to run a/b switch w/ the 997 so i can have sonar when running

Yes, the XP-9-20-T is the transducer you want or the XP-9-20 (no "T") is the non-water temp version of the same transducer.