Lowrance B117 0 Degree 50/200kHz Thru-Hull Depth/Temp w/Blue Connector - 600W [B117-DT-BL]B117 Bronze Thru Hull Low Profile 600 W Blue Connector Applications Planing hull powerboats Sailboats Features Industry standard for low profile transducers Depth and temperature Good target detail in shallow water at 200kHz and good deep water bottom tracking at 50kHz Right angle cable exit offers low headroom and protection when transducer is stepped on Included rubber washer allows tightening of the hull nut to irregular hull surfaces Housings are