Humminbird XTH-6-20-P Thru-Hull Transducer

Plastic 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. Plastic Thru-Hull Transducers require that a hole be drilled in the hull and the shaping of a fairing block. Professional installation is recommended. Bronze Thru-Hull Transducers are an alternative to Plastic Thru-Hull Transducers

Plastic thru-hull dual beam transducer, 30 ft cable, 200 kHz/83 kHz. Requires a hole to be drilled in the hull and the shaping of a fairing block. Recommended for hulls such as aluminum that cannot accommodate a bronze thru-hull. Not recommended for boats that are trailered or for wooden boats or for use with a wooden fairing block. Used with the 200DX, NS25, PRO ANGLER, PRO ANGLER 160, XTREME 160, TRACKER PRO 128, 105SX, 405SX, Legend 1000, Legend 2000.