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Through-Hull Transducers

- Jul 23, 2018 -

Through-hull transducers are mounted through a hole drilled in the bottom of the boat and protrude directly into 

the water. This type of transducer generally provides the best performance.

Through-hulls are recommended for displacement hulls and boats with straight-shaft inboard engines. You'll 

also need a fairing block that allows the transducer to be mounted properly. Through-hull transducers must be 

installed with a fairing to ensure proper alignment and a secure fit.

Through-hull transducers must be positioned in front of the propeller, rudder, keel or anything else that may 

create turbulence. They must be mounted in a position that is always underwater and angled straight down.

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