A gas cylinder assembly for welding-type devices includes a gas cylinder having a neck portion, a base portion, and a body portion enclosing a cavity and constructed to receive a gas therein. The gas cylinder is configured to be enclosed in a welding-type device. A valve is disposed about the neck portion of the gas cylinder and is operatively separates the cavity from the atmosphere. The valve is operably engageable by a regulator constructed to allow flow of the gas therethrough.