The Attwood Mercury Female Fuel Tank Fitting features a 3/8" barb designed for secure connections with Mercury and Mariner fuel systems. Made from molded acetal, it offers low fuel permeation and compatibility with leaded, unleaded, ethanol, and alcohol-blended fuels. This fitting ensures reliable fuel delivery and durability in marine environments. Note that clamps are not included. Compatible with part 8873-6 for seamless integration.