Most metal hull and sterngear corrosion is caused by Galvanic currents, which can dramatically shorten the life of your anodes and your hull. If your boat is connected to a shore supply (electric hook‑up), you absolutely need a Galvanic Isolator – even if you have nothing switched on.

Boaters often tell me, “I hardly use any electric, it’s just a backup for my solar,” or, “I only use hook‑up to charge my batteries.” It doesn’t matter how much or how little shore power you use: if you’re plugged in, you 100% need a Galvanic Isolator.

A Galvanic Isolator stops Galvanic currents from flowing, and when those currents stop, the corrosion they cause simply can’t happen. The result is longer‑lasting anodes and no hull damage from Galvanic corrosion. Fitting our Galvanic Isolator takes just a few seconds. Anyone can do it, and protection starts the moment you plug it in. It comes with a full lifetime guarantee and is made right here in the UK.