R.W. Fernstrum & Company is a business built on innovation. Our founder, Robert W. Fernstrum, received a patent for the first Rectangular tube keel cooler in 1945, setting the standard for keel cooling for the United States Army and Navy. Since then, we've continued our tradition of bringing the latest technology to the marine industry earning more keel cooling related patents than any other company. Today the Fernstrum family is still at the helm of the company, ensuring that all of our marine cooling products provide our customers with the best in efficiency, quality and ease of installation.