Lowrance Structure Scan Stainless Steel Transducer (Single) Includes StructureScan HD transducer, fairing block and isolator kit, which is recommended when installing the stainless-steel transducer on an aluminium boat hull. July 2014: Effective immediately, Navico is transitioning from bronze to stainless-steel construction for its StructureScan™ HD thru-hull transducers. The transition from bronze to stainless allows for installation on fiberglass, wood and, now, metal hulls. Pricing, performance, form and fit are the same as the bronze transducers being replaced. | 
