Russell Fuel line adapters can connect to 3/8″ or 1/2″ aluminum tube to -6 or -8 adapters. These fuel line adapters feature a unique crimp design which now eliminates tube flaring. Available in male or female ends for 3/8″ or 1/2″ tubing these adapters are offered in an anodized Red/Blue finish, or Black/Silver finish to complete your customized look.