A rubber one. What happened to your stock hose? I would probably just recommend you grab another stock one and use it. I've never checked, but I'm assuming that plastic connector inside it is a check vavle (only lets air go one way) so your going to need to keep that. Probably get one in a junk yard for $.50 and if you don't want to use an old hose or need it longer, take that one to a parts store and match up the tubing so you get the right size. Seeya.