Garmin B75H Bronze 20 Degree Thru-Hull Transducer - 600W, 8-Pin [010-11634-22]Airmar B75H w 20 Tilt 600W Flush mounted bronze housing,tilted element inside the transducer accommodates all hull deadrises and eliminates the need for a fairing block. Low, medium, and high frequency versions provide maximum flexibility for the choice of frequencies. Excellent for fiberglass and wood hulls. Max Depth 800' Suppoarted Deadrise Transom Angles 16 24 Deadrise WARNING: This product can expose you to chemicals which are known to the State