The Manchester Tank propane cylinder conforms to DOT and NFPA-58 specifications and is triple tested with dry pneumatic air and steel shot blasted prior to painting. The Manchester Tank propane cylinder has powder coat paint for maximum rust protection and a handle-EZ collar design-the only collar with a built-in, formed handle with no sharp edges. Every Manchester Tank propane cylinder includes consumer warning decals that are easy to read for your protection. All cylinders conform with strict compliance to DOT specificationsTriple tested with dry pneumatic airPowder coat paint for maximum rust protectionHandle-EZ collar, the only collar built and formedAll cylinders include easy-to-read consumer warning decalsEquipped with new OPD valveCylinders shrink-wrapped on pallets or individually packaged in a carton for protection and easy storageMultiple testing procedures conducted for all cylindersSteel shot blasted prior to painting