The SS175L is a low profile stainless steel through hull single element CHIRP transducer. It has a 20 degree tilted element suitable for hulls with 16-24 degree deadrise. Compatible hull material: fiberglass and wood. Max Power: 1000 watts. Frequency: 40-75 kHz. Beamwidth: 21-32 degrees. Cable: 30ft (9.1m) cable. Require cable A80328 if its the only transducer being connected or cable A102146 if its one of two transducers being connected to a CP450C, CP470 and CP570.