wheels for engagement with the tank bottom is also provided application_number US 73206885 A description with reference now to the drawings the cover of the invention is shown generally by reference numeral 10 the cover is adapted to fit over a compressed gas tank shown by reference numeral 16 such tanks are typically elongated cylinders having a rounded upper shoulder portion 18 upon upon which is mounted a valve assembly 22 such assemblies commonly include associated fittings pressure gages release valves and the like the bottom portion 20 of the tank is usually flat so that the tank may rest upright such tanks are constructed of steel or heavy aluminum and are designed to contain compressed gases such as air nitrogen propane acetylene oxygen and the like at very high pressures because the cover of the present invention is open ended it can be used with tanks of varying length also the cover includes a diameter adjustment system to allow its use with tanks of varying diameters the cover includes head portion 12 from which extends sleeve portion 14 the head portion is preferably rounded or parabolic in shape and encloses the valve assembly 22 it may comprise a solid plastic material with a cut out area 38 for enclosing a variety of sizes and shapes of valves and associated devices alternatively the head portion may comprise a sleeve containing cushioning material or comprise a reinforcing gridwork with an open area.