Humminbird XP-9-20-T In-Hull Puck Transducer [710147-1]Puck Transducer Description: Puck transducer . Single Dual Beam, 20 60 degree, 200 83 kHz with built in temperature For Use With: Legend ID40, Piranha 5, PiranhaMax 10, PiranhaMax 15, PiranhaMax 20, Matrix 15, Matrix 17, Matrix 25, Matrix 27, Matrix 55, Matrix 65, Matrix 67, Matrix 97, FF515, FF535, FF565. WARNING: This product can expose you to chemicals including LEAD which is known to the State of California to cause cancer, birth defects or other