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GT21-TH
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.
WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.
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Jig Shack Outdoors is the official retail expansion of Jig Shack, founded by Bruce West. Established February 3, 2026 under new ownership by Brian West, we provide a full-line outdoor retail storefront including fishing tackle, apparel, custom-painted lures, and tungsten products. While carrying the original Jig Shack private-label products, we operate as an independent retail business serving anglers and outdoor enthusiasts.
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