Take a spare propane tank and turn it into a useful portable air tank. No Tank Mods, No Removing Valve, No Drilling!
Pressure ratings for propane tanks are in excess of the valve 375psi safety blow-off. 20lb and 30lb propane tanks are dot4ba240 rated which have a service pressure of 240psi and are hydro tested to 2x that (480psi). Compare that to a store-bought portable air tank with a max service pressure of 125psi and no DOT rating.
Editor’s Note: Working with pressure vessels is always dangerous. Dented, rusted or damaged tanks are obviously a poor idea to use.
See Also: How To Make A Portable Air Tank From A Fire Extinguisher
Simply the best lock-on tire chuck ever made:
POL Fitting (fits old and new style tanks)
Milton Commercial Tire Inflator Gauge