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Hot Sale Garmin Gt21-th Thru Hull Downvu Transducer - Don't Overpay [oe1C6NJS]

$67.99 $217.99 -69%

Garmin GT21-TH Thru HullDownvu TransducerModel: 010-01962-10UPC: 753759152833Perfect for coastal and offshore fishermen who want traditional sonar and CHIRP ClearVü scanning sonar with a stainless steel stem, this thru-hull mount transducer consisten

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Hot Sale Garmin Gt21-th Thru Hull Downvu Transducer - Don't Overpay [oe1C6NJS]

Garmin GT21-TH Thru Hull

Downvu Transducer

Model: 010-01962-10
UPC: 753759152833

Perfect for coastal and offshore fishermen who want traditional sonar and CHIRP ClearVü scanning sonar with a stainless steel stem, this thru-hull mount transducer consistently displays clear and crisp fish arches with superior target separation as well as clear definition of structure below the boat.

The CHIRP ClearVü 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.

Specifications
General
Frequency
Traditional 50/200
ClearVü CHIRP 260 kHz (245-275 kHz) & 455 kHz (445-465 kHz)
Power
Traditional 600 W
ClearVü 500 W
Beamwidth
Traditional 40°/10°
ClearVü 2.0°x51° @ 260 kHz and 1.4°x29° @ 455 kHz
Maximum depth
Traditional 1,500 ft
ClearVü 1,000 ft.
Depth/Speed/Temperature Depth and Temperature
Number of pins 8-pin
Cable length 30 ft.
Supported deadrise/Transom angles Up to 25° deadrise

What's in the Box:
  • 8-pin transducer
  • fairing block
  • isolation plate and bushing
  • Mounting hardware
  • installation instructions

What Our Customers Say

January 18, 2026

Absolutely no complaints!

The value you get for the price is just unbeatable.

- Anna M..

January 18, 2026

Absolutely no complaints!

The performance is flawless and the quality is exceptional.

- Robin V..

January 18, 2026

Absolutely no complaints!

The product is sleek, sturdy, and performs beyond expectations.

- Kylie P..

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