Garmin GT20-TM Transom Mount ClearVü 500W 455/800kHz Traditional 77/200kHz 4-pin | eBay
GARMIN GT20-TM Transom/Trolling Motor Mount 8-Pin Traditional and CHIR – D&B Marine Supplies
Garmin GT20-TM Transom Mount DownVu 500W (CHIRP 455/800kHz) Traditional 500W (77/200 Hz) Transducer w/Temp - 4-Pin - BOEMarine.com
Garmin GT20-TM – Transom Mount ClearVü 500 W (CHIRP 455/800 kHz) Traditional 500 W (77/200 kHz) Transducer with Temp (8-pin) for Sale in Mission Viejo, CA - OfferUp