I have a Masterflow and it works great. I was able to inflate a 32 inch tire in about 5 minutes.. An F.Y.I. though, it's a proprietary connector, and the threads are non standard. I wanted to add a longer hose, and an additional PSI gauge. I had to remove the old hose and re-thread the maifold. I also made some changes to the manifold heat sink so it disipates heat better. After that was done, I am now able to plumb into a manifold or fill a small air tank.