Helix Submersible SAE 30R10 Fuel Line Helix 30R Fuel Line is can be used with fuel injection system and meets many of the same specs of OE equipment. Features: Semi-rigid fuel line Meets SAE 30R10 / EPA / Carb specifications for submersible fuel line Can be used for other fuel line applications including fuel injection and fuel containing alcohol Available in various sizes and lengths: 5/16 (7.9 mm) or 1/4 (6.3 mm) diameters From 18 inches to 25 feet lengths Flexible multi-layer rubber extrusion construction Can be used for other fuel line applications including fuel injection and with fuel containing alcohol Made in the USA