Gross Mechanical Laboratories, Inc.

Founded in 1918, GROCO (Gross Mechanical Laboratories, Inc.) has established itself as a leader in the marine industry, known for its innovative designs and high-quality products. The company originated in Baltimore, Maryland, and has a rich history of developing unique marine hardware, including patented products like tank engine oil coolers and water strainers. Over the decades, GROCO has evolved alongside the marine industry, transitioning from wartime production to creating pleasure marine products. Today, GROCO continues to innovate, offering a wide range of products such as valves, seacocks, raw water strainers, and more, all designed to meet the needs of boaters and marine professionals. With nearly a century of experience, GROCO remains committed to quality and customer satisfaction.