Garmin 010-10218-21 77/200KHZ 12D Tilt Plastic P19 TH 8PMeet the Garmin 010 10218 21 dual frequency transducer, built to deliver reliable sonar performance on every voyage. It integrates with Garmin fishfinders and chartplotters to provide real time depth, speed, and temperature readings. Dual frequency operation: 77 kHz 200 kHz for versatile scanningwide area bottom detection at 77 kHz and detailed readings at 200 kHz. 12 tilt plastic housing (P19 TH): 12 degree tilt design optimized for stable coverage
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