This is CAVIS 5x7 fluid hose that attaches to the water bag. In general, for this sort of hose, Clear is for "water", Blue is for "vapor" and Red is for nasty stuff like gas. I have seen some Daytonas using "clear" CAVIS as the raw fuel overflow tube from the filler gap area. And people wonder why some Daytonas smell of fuel. The wrong hose is being used and the gas is leaking through the hose. Also the hose wasn't always supplied by Cavis. The 16 x 23 hose supplied for Daytona in the trunk section could have been made by Pirelli.