Garmin AIRMAR® B175Step up to 1 kW without a fairing with this flush mounted bronze housing that protrudes less than 1 4 inch outside the hull and can sit on the trailer rollers bunks without damage. The tilted element inside the transducer accommodates all hull deadrises and eliminates the need for a fairing block. And, low, medium and high frequency versions provide maximum flexibility for the choice of frequencies. CHIRP Frequencies: B175H Series High Chirp: An