The 165T/275LHW-12P will work for the DFF3D (165T) and the DFF1UHD+.
However, Accufish and Bottom Discrimination require a CW (50/200) transducer.
You can connect a medium frequency CHIRP and a 50/200 to the DFF1UHD+ to give you a CHIRP image with the Accufish and Bottom Discrimination.
For that I would suggest a 165T-50/200-SS260 and something like a B175M. We would need to know your boat make/model and see some pictures to make a good recommendation.