"50000 GALLON TANK IS USED FOR STORAGE OPETROLEUM BASED FUELS. THE UNIT CONSISTS OF THE COLLAPSIBLE TANK, COMPLETE WITH TWO EACH FILLER/DISCHARGE ASSEMBLIES WITH ELBOWS, A VENT FITTING ASSEMBLY WITH RELIEF VALVE, A DRAIN FITTING ASSEMBLY WITH AN EIGHT-FOOT DRAIN HOSE WITH CONTROL VALVE, ANEIGHT FOOT FILLER/DISCHARGE HOSE ASSEMBLY WITH CONTROL VALVE AND EMERGENCY REPAIR ITEMS"