Blue sailing yacht seen from below, with part underwater, clear blue sky and water.
Bronze vs. Marelon Thru-Hulls: Which Should You Trust Below the Waterline?
Choosing the right thru-hull material can directly impact your boat’s safety. A retired U.S. Coast Guard officer compares bronze and Marelon, breaking down strength, corrosion resistance, ABYC standards, and real-world maintenance considerations to help you decide what belongs below your waterline.