Lexan Depth Transducer f/ST60 & ST290P19 Plastic Low Profile Through Hull Transducer Key FeaturesIncludes 45 cable, Frequency: 200 kHz, Compatible hull material: metal & fiberglass, Hole diameter for installation: 2 Compatible modelsST60+, i50, ST70 / i70 (requires ST70 depth pod or ITC5 - sold separately) Raymarine Lexan Depth Transducer f/ST60 & ST290Condition : This item is brand new, unopen