Garmin GT8HW-IHGarmin GT8HW IH GT8HW IH transducer is ideal for bass boats that want to install the transducer inside a fiberglass hull and not on the transom where cavitation could cause issues. It requires a flat section (less than 6) in the hull to be mounted and is excellent for boats traveling at high speeds that want to maintain accurate depth readings. The 8 pin transducer features high wide CHIRP traditional sonar (145 230 kHz) and has a power rating of 250