Garmin GT15M-TM GT15M-TM Powersports Audio SlamPak but without the harshness often

but without the harshness often associated with metal diaphragms

from 5ºF to 158ºF)

the Cortex hub’s thermal polymer housing is heat- and corrosion-resistant — so it can be safely mounted anywhere onboard

the DM-65C-G should be at the top of your list

Garmin GT15M-TM GT15M-TM Powersports Audio SlamPak but without the harshness oftenGT15M TM transducer is perfect for fishermen who want clear bottom definition under the boat as well as crisp, clear and wide fish arches with excellent target separation to depth up to 1,900 feet. The 8 pin transducer features mid band CHIRP traditional sonar (85 165 kHz) and has a power rating of 600 W. It can be mounted on the transom. Follow the included installation instructions carefully to avoid damaging your boat. Specifications: Transducer