The Garmin SS175L thru hull transducer by Airmar is a 20 degree tilt and packs 1 kW of power.
This Airmar SS175 Low transducer has a 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. An excellent choice for fiberglass and wood hulls, this 8-pin transducer has a depth of 2,000 feet, an operating frequency of 46-60 kHz, a beam width of 16-25 degrees and a 16 to 24 degree deadrise.