Keep your engine running at peak efficiency by filtering out any water that may get into the fuel system. 10 micron filtering capability; fits all 2 and 4 cycle engines. Attwood Corporation has been an award-winning leader in engineering, testing, and manufacturing the highest quality marine products for over 100 years. We deliver safe and reliable lighting, fuel systems, water systems, seating & pedestals, swim ladders, custom upholstery, and general marine accessories that are easy to install and meet regulatory compliance.