Humminbird  XP 9 28 Single/Dual Beam In-Hull Transducer, Mounts to inside of most single-layer fiberglass hulls using slow-cure epoxy 15 ft cable and epoxy included For Head Units: PiranhaMAX 176i, 195c, 175, 165 Transducer mounts to inside of most single-layer fiberglass hulls using slow-cure epoxy Hull must be free of trapped air and voids) 15-foot cable and epoxy included Fits Humminbird head unit models: PiranhaMAX 176i, 195c, 175, 165