This product is either discontinued or we cannot get that from suppliers.
Garmin 010-10249-20 Dual Beam, Black, Frequency 77/200 kHz, Power Output 500 W; Beam Width 45°/15°, Number of Pins 4-pin; Cable Length 30'.
Dual beam transducer 200KHz with 45 and 15 degrees beam angles. Transom mount with depth and temperature. Supplied with mounting hardware and installation instructions.