SKU: 28572056723

Garmin GNX 21 Marine Instrument w/Inverted Display - 4"

Sale price$202.50 Regular price$225.00
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Ships within 48 hours · Estimated delivery Aug 17 - Aug 22

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Description

Garmin GNX 21 Marine Instrument w/Inverted Display - 4"GNX 21 Marine Instrument with Inverted Display 4" Marine Instrument with Inverted 4" LCD Large, easy to read white or color digits on a black background for high visibility in low light or darkness; choose from 7 customizable backlight colors Glass bonded display with anti glare lens avoids fogging Fully customizable user profiles for sail or power boating to display most important marine and vessel data Low power consumption (25 mA) with 350 mW (no

GNX™ 21 Marine Instrument with Inverted Display - 4"

Marine Instrument with Inverted 4" LCD

  • Large, easy-to-read white or color digits on a black background for high visibility in low-light or darkness; choose from 7 customizable backlight colors
  • Glass-bonded display with anti-glare lens avoids fogging
  • Fully customizable user profiles for sail or power boating to display most important marine and vessel data
  • Low power consumption (25 mA) with 350 mW (no backlight)/400 mW (mid-level backlight)
  • 5 display configurations plus gauge and graph mode to display depth, speed, wind and 50+ marine and boat parameters

The easy-to-read GNX 21 marine instrument has an inverted display with white or color digits on a black background that clearly shows depth, speed, wind and 50-plus marine and boat parameters. Its glass-bonded display with anti-glare lens coating provides excellent daytime and nighttime readability with high-contrast digits scalable up to 36 mm.

The GNX 21 is the first glass-bonded marine instrument with a combination of directly driven LCD segments and a dot-matrix field to display graphical information. Its low power consumption - (25 mA) with 350 mW (no backlight)/400 mW (mid-level backlight) - is perfect for use on sailboats, and provides a valuable instrument for cruising and fishing. Fully customizable user profiles display wind, depth and speed data. Plus, the GNX 21 includes an auto-scroll feature that rotates through data screens for hands-free operation. It can be installed with the included low profile flush mount or an optional flat mount for the ultimate glass helm solution and custom look for your boat.

Easy-To-Read Display

Unique high-contrast hybrid display features large, easy-to-read digits scalable up to 36 mm tall. Offers excellent clarity in direct sunlight, at dusk, or at night. The dot-matrix section can show additional details and/or graphical information.

Glass-bonded Display

Glass-bonded display helps prevent fogging, and the anti-glare lens finish increases visibility.

Customizable Color Digits

Choose from 7 different backlight colors, or even create a customized color, to achieve the screen that provides optimum readability for you.

Customizable User Profiles

Fully customizable user profiles allow you to choose from 5 available display configurations for sailboat or powerboat user-profiles: single, dual and triple function, plus gauge and graph mode to display wind, depth and speed data, or customize the pages to display the marine and boat data that is most important to you.

Auto Scroll

Set your display to automatically cycle between pages at a speed you set for convenient, hands-free operation.

Low Power Consumption

Perfect for sailors who want to sail for long intervals without having to run a motor or generator to charge batteries. The GNX 21 uses only 25 mA with 350 mW daytime usage, requiring no backlight and just 400 mW with a mid-level backlight setting at night.

NMEA® 2000

Monitor more than 50 marine and boat parameters, including GPS speed, water depth and temperature, wind direction, and wind speed from the NMEA 2000 bus. You can also add a NMEA 0183 device using the optional 7-pin bare-wire power/data cable.

In The Box

  • GNX 21
  • Trim piece snap cover
  • Protective cover
  • Flush mount gasket and hardware
  • NMEA 2000® T-connector
  • NMEA 2000 drop cable
  • Installation instructions
  • Documentation
This product may not be returned to the original point of purchase. Please contact the manufacturer directly with any issues or concerns.

Specifications:

  • Shape: Square
  • Screen Size: 4"
  • Instrument Function: Multifunction
  • Box Dimensions: 5"H x 9"W x 10"L WT: 2.95 lbs
  • UPC: 753759120962

Owner's Manual (pdf)
Brochure (pdf)
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 28572056723

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4.0 ★★★★★
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Steven P Nelson
Louisville, US
★★★★★ 5
Great buy!
Scent: Palo Santo, Size: 16 Fl Oz (Pack of 2)
This is my favorite brand and the lather is second to none! The smell is amazing and the quality is worth the extra price. It leaves my skin feeling moisturized and soft.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 4, 2026
M
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Mitchell
Fort Morgan, US
★★★★★ 5
FINALLY. THIS IS ACTUALLY WHAT YOU WANT.
Scent: Seagrass & Driftwood, Size: 32 Fl Oz (Pack of 1)
I’ve tried all of the soaps. All of them. Molten brown sucks, 18.21 sucks, Blackwood sucks, and brickell sucks. All I wanted is a premium soap that doesn’t suck. All I wanted is to feel good and smell good. I work in kitchens, so I’m not some desk monkey needing to wash off the stale air, I have to actually clean myself. I don’t even know how these soaps stay in business, you might as well be using Irish spring and save the money. Nothing moisturizes, I’m always left with dry skin, or the smell lasts all of 6 minutes. Until now. This stuff is actually the luxury brand I’m swearing by. It lasts on my skin, it lathers well, it cleans well, and it doesn’t give me itchy skin just to smell nice after a shower. Also, it doesn’t cost $36 per bottle like molten brown does for 2 teaspoons of soap with gold flakes in it that smells great for 6 minutes. It’s cheaper, and you get more.
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Reviewed in the United States on September 14, 2024
U
Verified Purchase
UrKungFuNoGood
Carnegie, US
★★★★★ 5
Long Lasting Scent
Scent: Bourbon Oak, Size: 16 Fl Oz (Pack of 2)
I've tried dozens of different brands of body washes and have had various objections. This is the best by far in every metric. First of all the scent. Bourbon & Oak. I'm not convinced that it smells like bourbon OR oak. It's definitely a warm musky scent and I would say it tends more towards a creamy spice with a strong low note. Longevity: My job is about 50 percent physical throughout the day and I tend to shower only at night when I get home from work. This is the only body wash whose aroma not only lasts through the rest of the evening, but well into late morning the next day. I would even say that physical activity brings out a very smooth and subtle character. This is the first time I've ever been able to smell a body wash the next day. It was surprising and pleasant. As for moisturizing, my skin feels smooth but without the oily residue that I typically associate with moisturizing products. If a product lives up to my expectations I tend to leave a simple review and fair rating. For products like this that exceed my expectations I try to leave a more detailed review that highlights its strengths. I will most certainly continue to use this brand and experiment with the different scents available. 10/10 would recommend.
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Reviewed in the United States on October 29, 2023
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Verified Purchase
Matthew Nelson
Lowell, US
★★★★★ 3
Please do NOT reship items like body soap that have been returned
Scent: Seagrass & Driftwood, Size: 32 Fl Oz (Pack of 1), Scent: Seagrass & Driftwood, Size: 32 Fl Oz (Pack of 1)
So I've purchased this twice now, I love the scent and I love how it lathers up, overall very happy with the produce so long as I get a product that wasn't previously returned. The 2nd order I received, it was clear that someone had replaced the soap in the bottle with some other kind of liquid and returned it and I got it. First off that has to be dangerous and hazardous. As you can see from the pictures, something is wrong with this product. The first product I got had a clean scent, was clearly a body soap liquid. The 2nd product I ordered was more water, smelled had virtually no scent at all. Unfortunately I had already poured it into my soap dispenser so it's now not returnable. PLEASE DO NOT SHIP OUT RETURNED ITEMS!! It's dangerous
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Reviewed in the United States on February 15, 2024
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Verified Purchase
Justin Morgan
Cuba, US
★★★★★ 5
Good soap
Size: 5.3 Ounce (Pack of 4)
It was so good that my friends took some for themselves. Without asking. Bastarts... good deal though, smells very nice! Especially that whisky one. The coarse texture makes for a great clean!
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Reviewed in the United States on April 3, 2026

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