Connect your tank and fuel lines with confidence; solid machined brass construction holds up to leaded, unleaded, and alcohol-based fuels. Designed for Yamaha Brand engines and tanks; also fit select Mercury/Mariner Brand 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.