Sure-Grip® Ex Hazardous Material Piggyback Safety Cabinets, 17 gal., 43" x 24" x 18"Designed to mount on top of standard 30 and 45 gallon safety cabinets Piggyback cabinets create a safe storage space without taking up any valuable floor space or can also be used independently as a wall mount unit or on a countertop Double wall construction, dual vents, grounding wire connections, adjustable shelves, leak proof sills, three point self latching doors and leveling feet Self close doors shuts and latches automatically when a fusible