For inside engine
bay use, you need to ensure is its reinforced multi layer, anti-static fuel rated hose, with appropriate temperature ratings and pressure rated above the pump delivery
The Australian National Stand for General Safety
Requirements for Vessels PART G, which is a good reference, refers to SAE J1527 as the Marine
fuel hose standard. If you search Australian Marine or Quality auto parts
online stores with the above SAE code you will find multiple sources of supply. Additionally your local ships chandler would normally have this (nominal) 10mm hose in stock.
As per Lepke, ensure that at any potential rubbing points you protect the hose. There are Stainless Steel
outer braided hoses available if this is a potentially big issue. Also ensure you have a fuel shutoff valve for each fuel line at the tank.