Best Boat Fenders: Sizing Guide & Top Picks for Every Boat
A complete guide to boat fenders — fender types, sizing by boat length, how many you need, rigging tips, and top picks for powerboats, sailboats, and pontoons.
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Returns are accepted within 30 days after shipment. To be eligible for a return, items must be unused, uninstalled, and in their original packaging, and proof of purchase is required. The following items are not eligible for return: Installed or used products, clearance or final-sale items, trolling motors, programmed AIS units, KVH Starlink products that are registered or opened, special-order products, or products displaying the notice “This product may not be returned to the original point of purchase. Please contact the manufacturer directly with any issues or concerns.” in their description. Opened or unsealed DVDs, CDs, or cartography (unless defective) are not eligible for return. Return Merchandise Authorization (RMA) numbers are required for all returns. Learn more.
Egret Marine ships marine parts and accessories within the contiguous United States only. Orders are typically processed same day if placed before 3pm CST, excluding weekends and holidays. Learn more.
GSD 24 Digital Black Box Network Sounder
The GSD 24 features a vastly improved digital sonar design for superior target definition and deep-water performance.
Get the Whole Picture
With up to 2,000 Watts of transmit power and a high-dynamic range receiver, the GSD 24 brings high-definition imaging to your compatible Garmin chartplotter. The system is dual frequency (50/200 kHz) capable and offers selectable transmit power (600 W, 1 kW and 2 kW, depending on transducer) for pin-point accuracy at depths of up to 5,000 ft (1,500 m). So whether you're out sportfishing or just keeping an eye on hazardous terrain and reef structures beneath your boat, you'll see a clearer picture with enhanced separation of images and deeper bottom detection.
Plug and Play
Thanks to the easy connectivity of the Garmin Marine Network, installation of the GSD 24 is a snap. Once connected, your sonar data will be shared on any compatible chartplotter on the network. Plus, the network's high-speed connections ensure that you get ultra-fast screen updates with minimal delay.
Product Features and Specifications
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.