Resistant to all modern fuels including petrol containing ethanol up to 15% (E15) and even E-85, but not for biodiesel. Reinforced with two spirals of synthetic fibre and covered in black Hypalon. Good flexibility. External diameter 13mm (Use hose clip 015.916). Maximum working pressure 50 p.s.i.. Meets SAE J30 R6 Specification. Stocked on the roll and sold by the metre length.