I installed this one in my Ranger. My hull has a step, like a built in setback/jackplate and the underside is flat and perfect for this true thru hull transducer (yes, I drilled a 1" hole in the bottom of my boat). I works great. Except that it does not work at all when on plane because it is out of the water. But off plane, no matter what speed, it has a clear view out both sides and works fine.



I installed the original 6" monster transom mount transducer on my pontoon boat so that I can use the 997 on either boat.

Dayton