Funnels intended for use with flammables are fitted with a brass flame arrester that absorbs and dissipates heat, preventing any external ignition source (like sparks from power tools, static electricity or cigarettes) from reaching the drum's flammable contents. Heavy 18 ga galvanized steel, with electrostatically applied epoxy powder-coat finish, provides durability and chemical resistance. Self-close models have a fusible link that melts at 165 deg F shutting the cover automatically in case of a fire to extinguish the flames. Popular funnel No. 08207 with 6 in flame arrester handles most needs, while No. 08205 with 32 in flame arrester provides greater liquid flow. For viscous flammable or nonflammable liquids, funnel No. 08208 is fitted with a 33 in open-end brass tube to direct liquid flow. All funnels comply with EPA and OSHA regulations and are FM approved. Larger funnels accept a lock to prevent unauthorized access.