Garmin B117 Bronze Thru-Hull Depth/Temp - 8-Pin [010-10182-21]B117 Bronze Thru Hull Depth Temp 8 Pin This bronze thru hull mount transducer performs well at high speeds. An excellent choice for fiberglass and wood hulls, this 8 pin 600 W narrow stem transducer has a depth of 800 to 1,200 ft; an operating frequency of 50 to 200 kHz; a beamwidth of 45 to 12 degrees; and a 0 to 7 degree deadrise. Transducer kit comes with installation instructions. Follow the instructions carefully to avoid damaging your boat. Do