Bronze Thru-Hull Transducers are for large boats and for boats with in-board motors that make typical Transom Mount Transducers ineffective. They are not recommended for trailered boats as the transducer is not flush with the hull. Bronze Thru-Hull Transducers require that a hole be drilled in the hull and the shaping of a fairing block. Professional installation is recommended. Plastic Thru-Hull Transducers are an alternative to Bronze Thru-Hull Transducers Description: Bronze thru hull tri ducer, dual beam, 20/74 degree, 200/50kHz with temperature and speed. Transducer size 7"L X 2.5"W X 1.25" D(below hull). Front shaft diameter: .75", Back shaft diameter: 2". Fairing block included. For Use With: 931C DF, 937C DF |
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