Garmin Fairing Block GT21 GT41 GT50 GT51The Garmin Fairing Block GT21 GT41 GT50 GT51 is a purpose built upgrade for Garmin GT21, GT41, GT50, and GT51 thru hull scanning transducers. By positioning the transducer parallel to the waterline, it helps deliver clearer, more precise sonar readings in challenging mounting angles. Compatibility: Designed for Garmin GT21, GT41, GT50, and GT51 series thru hull transducers. Function: Positions the transducer parallel to the waterline to improve sonar
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