Cant remember who but someone sent me a link for a Blue Silicone hose the elbow comes from tank, the link was on Ebay it seems others have used them, I went and got 2 as the read up said fuel hose, 1 has been on for a year just putting the other on another Commer found I needed the filler hose down to the metal, I went back to Ebay same firm found one that looked ok I ask if it was ok as the write up was different, they said it was ok but NOT if fuel was to stay in contact as it will seep ! But the elbow does in contact ?, I went back and re read the advert for the elbow it says fuel hose but the other add for the different shape says fuel/oil mist ! before I get on to them I thought I would ask to see how many of you have used them