This plastic transom mount can be used to replace the dual frequency transducers included with many Garmin units
The 500W 6-pin transducer has a maximum depth of ~400m, and an operating frequency of 50 and 200 kHz, a beamwidth of 40 and 10 degrees respectively, and mounts on a 0 to 70 degree transom.
Transom kit comes with installation instructions. Follow the instructions carefully to avoid damaging your boat.
When using with an 8 pin Garmin sounder, transducer adapter cable part number 010-11613-00 is required (but you’re better off using the 8 pin version of this transducer) .
Transducer part number is 010-10272-00.