I use clear plastic hose purchased from Lowes (cheap). Not really sure what this hose is normally used for??? Clear, very flexible, and they have spools of it in various diameters and sold by the foot. 3/8" is like .25 cents per foot. When I first bought it I thought maybe the fuel would destroy it however since it was so cheap it was worth a try. Well, it's been on there for several years now and no problems. I would never trust it under the hood of a truck because the temperature extremes would likely destroy it however it seems to work great for transfering diesel fuel and motor oil.