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Update your current fishfinder with the XP 9 20 In-Hull Transducer from Humminbird. Designed for use with select fishfinders, this unit features single and dual beam sonar options. Also, it has coverage angles of 20 and 60° as well as 200 and 83 kHz frequencies. Additionally, the unit has an in-hull mount for use in single-layer fiberglass hull boats and has a 15' cable.
Humminbird Matrix 10, 12, 15, 17, 20, 27, 67, 77, 87, 97, PiranhaMAX series (except 240), 100 series (except DI), 300 series (except DI), 500 series (except DI), 600 series (except DI), 700 series (except DI), 800 series (except DI), 900 series (except DI and 3D models), 1100 series (except DI), HDR610, HDR650