Boat owners know the frustration of watching sacrificial zincs dissolve faster than expected, leaving thru-hulls, shafts, and props vulnerable to electrolysis. The culprit? Stray low-voltage currents sneaking through the connection between your boat's AC safety ground and DC bonding system. Enter the Newmar GI-30 Galvanic Isolator—a reliable barrier that stops this galvanic corrosion in its tracks without compromising your safety ground path.

Designed for cruisers, sailboats, and yachts drawing up to 30 amps from shore power, this compact unit slashes zinc replacement costs and haul-out expenses. Its built-in capacitor adds an extra layer of protection, offering a low-impedance route for AC faults to reach ground instantly. Whether you're docked at a busy marina or exploring coastal waters, the GI-30 keeps your underwater metals intact longer.