Marine Battery Guide: AGM vs Lithium vs Flooded – Which Is Best for Your Boat?
Compare AGM, lithium (LiFePO4), and flooded marine batteries. Learn about capacity, lifespan, weight, charging, and which type fits your boat’s needs.
Free shipping on orders over $150. Learn more
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.
Hydrodynamic Fairing Block for CB131 Series Transducers
Echonautics fairing blocks are made for the thru-hull installation of traditional stem transducers. A fairing block is recommended for the installation of any traditional stem transducers to the vessel's hull to protect the transducer and guarantee excellent performance while the vessel is underway. The fairing block helps to ensure a bubble-free flow of water across the face of the transducer.
Fairing blocks are required for the transducer to match the deadrise angle at the vessel mounting location. The fairing block is used to match the deadrise angle by orienting the transducer's sound beam straight down by mounting the transducer parallel to the water surface.
Echonautics high-performance fairing blocks are made of high-impact polymer and designed for excellent transducer performance even at speeds above 15kn (17MPH).
What's In The Box?
Specifications: