Heavy-duty, coated steel with reinforcing ribs and tough powder paint finish for durability. There are two openings at the top, one with a flexible metal hose for smooth, accurate pouring into small apertures. The hose also provides a bonding path to a receiving vessel. A second opening behind the handle is used for filling. A swinging handle helps to carry a full, heavy can. During pouring the weight of the liquid counterbalances the pressure required to open the spout. Both openings are equipped with dual-density flame arresters which dissipate heat to prevent flashback ignition. Both openings self-close to prevent spillage and the rear opening automatically vents between 3 and 5 psig to guard against pressure build-up at elevated temperatures and potential explosion. Meet OSHA and NFPA, are FM Approved and UL/ULc listed. Carb compliant and TUV certified.