The Garmin GT8HW-IH Transducer is designed for bass boats. It's the ideal solution if you want to install your transducer inside a fiberglass hull and not on the transom where cavitation could cause issues. Complete with waterproof construction and a 20-foot long cable, this transducer is a solid choice for the job. Garmin GT8HW-IH Transducer - Mrne Electrncs And Radios at Academy Sports