Trust me, if you don't get some cheaply made ones, you don't ned a clamp for them. My teacher passed around a peice from his super-modified to the class and no one was able to get the fitting out, they're on there for good. So if you're gonna use it on something you're gonna take apart, add extra to it because you're gonna have to cut the hose to get it off and you want that extra length of hose so you can slip it back on instead of buying a whole new hose.