Humminbird ICE PTC UNB Portable Conversion Kit w/XI 9 20 Transducer f/Non-CHIRP [740158-1NB] ICE PTC UNB Portable Conversion Kit with XI 9 20 Transducer for Non-CHIRPThe ICE PTC XI 9 20 H57 is a portable ice fishing kit for Humminbird HELIX 5 and HELIX 7 models without CHIRP sonar technology.
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