GT23M-TM Plastic, TM Transducer, Mid-Band CHIRP/CHIRP DownVü – 260/455kHz, 500W, 8-Pin GT23M-TM transducer is perfect for coastal and offshore fishermen who want CHIRP traditional sonar and CHIRP DownVü scanning sonar.…Continue readingGarmin GT23M-TM Plastic, TM Transducer, Mid-Band CHIRP/CHIRP DownVu – 260/455kHz, 500W, 8-Pin [010-12404-00]