If you have any doubts between this item and the 'Garage Ready Inflator' that Revain also sells with Prime, do yourself a favor and get an EPAuto pump (this item ). This inflator has solid brass hardware, includes batteries, and a rubber o-ring that actually seals your valve stem. The "other" is cheap, with cheap fittings and a nylon washer instead of an o-ring, which doesn't seal the valve, and a cheap clamp doesn't hold it tight enough to seal. I first bought a ready-made pump for the…