Justrite Hazardous Material Safety Cabinets have the same quality safety features as the cabinets for flammables. All models come with double-wall construction, dual vents, grounding wire connections, adjustable shelves, leakproof sills, three-point self-latching doors and leveling feet. Self-close door(s) shuts and latches automatically when a fusible link melts at 165�F (74�C) under fire conditions. Unique, concealed self-closing mechanism offers obstruction-free access to contents. Additionally, they include polyethylene trays that sit on top of galvanized steel shelves and a separate polyethylene liner for the bottom sump to resist aggressive chemicals.