StructureScan SS Dual Thru-Hull

StructureScan SS Dual Thru-Hull - a set of two dual-frequency pass-through transducers with a Y-cable for the echo sounder. It is installed on both sides of the vessel, from 9 meters in length, and is compatible with StructureScan HD and StructureScan systems from Simrad or Lowrance. 
It operates at 455 kHz and 800 kHz.
Comes in quantities of 2 pieces, complete with cable.
It is made of stainless steel, installed on the vessel through the hull.