All hose used in the fuel system must be fire resistant to at least 21/2 minutes, as specified in the internationally agreed marine fuel hose Standard (BS EN ISO 7840), although there are hoses available with superior fire resisting qualities (e.g. BS ISO 15540). Both of these hoses will also meet the current requirement for reinforcement and wall thickness.
I'm a little surprised that a reasonably modern production boat doesn't already have a fuel hose that meets the standard.
But hopefully a cheap fix.
