A safe way to eliminate the spraying of fuel when connecting and disconnecting pressurized fuel hoses during fueling or maintenance. High strength body engineered to withstand the harsh marine environment. Male and female connectors include check valves that automatically close upon disconnecting. Male tank fitting has pre-applied fuel-grade thread sealant to prevent fuel leaks and fits all standard 1/4″ NPT fittings. Compatible with Ethanol blended fuels and all OEM brand engines.