Attwood Universal Sprayless Connector - Male Fitting With Pre-applied Thread Sealant 

"The Universal Sprayless Connector is a safe way to eliminate the spraying of fuel when connecting and disconnecting pressurized fuel hoses during fueling or maintenance. It replaces traditional tank fittings and eliminates spray when connecting or disconnecting fuel fittings. It also comes with a pre-applied fuel grade thread sealant for added convenience. Compatible with Ethanol blended fuels. 2 Year Warranty.
Male connector for use on marine fuel tanks with 1/4" fittings."

Connector: Male fitting

Sold: Each