Customer notice: We are delighted to announce that we have re-opened our Port Solent store. We have implemented several social distancing measures to keep our customers and staff safe. These include a one-way system with separate entrance and exit, hand sanitiser station and 2m markings around the store. See full COVID-19 measures and restrictions here.

Our temporary opening hours are 8am - 5pm Monday-Saturday & 9am - 5pm Sunday.


Garmin GT21-TH Thru Hull Transducer DownVu/Sonar

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Garmin GT21-TH Thru Hull Transducer DownVu/Sonar

RRP £449.99

£399.95

FREE DELIVERY AVAILABLE


Garmin GT21-TH Thru Hull Transducer DownVu/Sonar
This thru-hull transducer provides ultra-clear sonar pictures of objects, structure and fish that pass below your boat. This traditional sonar and CHIRP DownVü transducer is optimized for depth performance and rough conditions.

The CHIRP DownVü element has a power rating of 500 W and operating frequencies of 260/455 kHz. The traditional sonar has a power rating of 600 W and operating frequencies of 50/200 kHz. It includes a built-in fast-response temperature sensor. For hull deadrises less than 25 degrees.

GT21-TH includes an 8-pin transducer with stainless steel stem, fairing block, isolation plate and bushings, mounting hardware and installation instructions. Follow the instructions carefully to avoid damaging your boat.

Size / ColourPart NumberStock AvailabilityPrice
 99441395 0 at 04/06 09:32 £399.95 Add to Basket