Gates 4219 Barricade
Sold by most NAPA Stores.
The gates costs a little more than regular fuel line but it is Bio compatible. Normal SAE 30R7 is not bio compatible and will slowly turn to goo if you use anything over B20. You need Viton or more specifically flouroelastomer, or flourinated isolatsomer hose. most of the Viton hoses I've seen are thin walled light duty hoses and aren't rated for either pressure or a vacuum which you will need if you are using it for fuel line. The Gates 42xx series or the Goodyear Infinity line 543-xxx are both rated for full bio compatibility.