Garmin GSD 25 Premium Sonar Module [010-01159-00]

Garmin GSD 25 Premium Sonar Module [010-01159-00]

Marsoni

M251S

$499.00

Get it in 3 business days with 1 day shipping. Friday, May 29

Garmin GSD 25 Premium Sonar Module [010-01159-00]GSD 25 Premium Sonar Module The GSD 25 premium sonar module is a remote network solution that provides outstanding fishfinding and bottom tracking capabilities. It offers dual channel 1 kW CHIRP, plus Garmin CHIRP DownV and SideV sonar scanning for the clearest scanning images on the water. The images sent to your compatible Garmin chartplotter have target details so clear and precise, you can actually distinguish between small and closely spaced fish

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Inconsistency in size per other reviews. The site said XL was my suggested size.....I usually follow that advice. I went XXL this time and happy I did. The neck is a medium and the rest is maybe XL....it feels "fitted" too...not very loose. I will keep it as I like a snug neck---but this needs effort to pull over my head. Having said that, the material is soft and not too thick. Just beware of sizes.

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Reviewed in the United States on October 16, 2025

Verified Purchase

R. Lesser

Bozeman, US

★★★★★ 5

Excellence

Size: X-Large, Color: Black

Excellent product, definitely will be buying more

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Reviewed in the United States on May 21, 2026

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Michael B.

Omaha, US

★★★★★ 1

Not black and Runs small

Size: X-Large, Color: Black

I ordered black but it was more like charcoal gray. I ordered a XL and it fit like a Large at best. The fabric was very soft, so that was a positive. Very disappointed in the color and sizing. I reordered a 2XL and it also runs very small. It fit about the same as the XL did. It is a athletic fit. There is barely any size difference between an XL and a 2XL. Highly recommend to not waste your money on this shirt.

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Reviewed in the United States on November 13, 2025

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Betsy B

Waukegan, US

★★★★★ 5

Warm and comfy

Size: X-Large, Color: White

Very soft and warm. Runs small. I’d buy up a size. Washes well

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Reviewed in the United States on March 15, 2026

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