Safety cabinet door self-closes and is equipped with a fusible link that melts when the ambient temperature reaches 165°F (74°C). Double-wall 18-gauge welded steel construction with 1-1/2″ air space. Dual 2″ capped vents with flame arrestors. Full-height piano hinges open a full 180° for easy access. Recessed handle. 2″ high leak-proof door sill. All shelves are adjustable on 2-1/2″ centers. Adjustable leveling feet. Tough corrosive-resistant finish. Meets NFPA Code 30 and OSHA standard 1910 106 for storage for class I, II and III liquids.