A pressurized container includes two plastic casings (12, 14) and produces a leakproof container or storage arrangement which is economical to produce. A gap opening (24) between the casings (12, 14) extends up to a point at which the casings (12, 14) are positioned together in a coaxial manner. An external support ring (22) with a wedge-shaped tapering (26) extends to that point and is embodied as an individual piece or has at least two metal, ring-shaped individual segments (28, 30).