BRONZE THRU-HULL TRANSDUCER •Airmar B175M •Depth & temperature (12º Tilt 8-pin) •Flush mounted bronze housing protrudes less than 1/4" outside the hull & can sit on the trailer rollers/bunks w/out damage •Tilted element inside accommodates all hull deadrises & eliminates the need for a fairing block •Excellent choice for fiberglass & wood hulls with depth of 3000'; operating frequency of 85-135 kHz; beamwidth of 11-16º & an 8 to 15º deadrise