Just sharing a possible source for what looks like really good Jango hose.
Inner diameter is .25", outer diameter is .438". It's way more pliable than the Home Depot stuff (almost as pliable as auto fuel line hose). I ordered it from USPlatics.com for .24 cents a foot (10 feet minimum order).
Here's the link to the item: http://www.usplastic.com/catalog/var...ant%5Fid=60701