The Fermod Fermostock 4-tier stainless shelving expansion kit (Model 4R42B71-E) is a durable and versatile storage solution. With a 71-inch height, 42-inch width, and 18-inch depth, it can support up to 800 pounds per shelf. The tool-free assembly and adjustable composite feet make it easy to set up and customize. The removable, dishwasher-safe polymer inserts and 20-micron deep anodized aluminum finish provide corrosion resistance, making it suitable for commercial kitchens, cold storage, and heavy-duty foodservice use. This NSF-certified shelving unit can withstand a wide temperature range of -40 to 140 degrees Fahrenheit, ensuring reliable performance in various environments.