Microflex has designed and developed a DWH, double wall fuel-line hose for Marine Engine Application. Our Patented design incorporates the strength and resilience of the annular corrugated special alloy hoses. Because safety is paramount in Marine Operations, Microflex's DWH can safely contain any rupture, unlikely to occur, of the pressure carrying inner hose, thereby eliminating dangerous engine room oil spills and hazards. our DWH are Type Approved by Lloyd's Register Group for the Cruise Industry.